MN WTB: clutch pedal assembly. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Vintage Windmills · 02-05-2019, 08:07 PM

Ideally a hydroboost and hydraulic clutch assembly if they made such a combination. My truck is an 86 K30 with Cummins conversion in progress.

Let me know if you have something.

Thanks, Jud

74CustomK20 · 02-06-2019, 08:35 PM

I have a hydroboost, but not hydraulic clutch if you don't find one. Outta my 74, If you think it'll swap over.

Vintage Windmills · 02-06-2019, 09:21 PM

I can probably make it work. Pics? Price shipped to 55020?

lowrollin70gmc · 02-06-2019, 11:57 PM

There is a hydro boost / hydraulic assembly. (I have one to convert my 84 if you need measurements or pictures, but it’s not for sale)

The hydraulic clutch assembly and support rods is the hard to find part, the hydro boost pedal will swap into a vacuum pedal assembly.

sweetk30 · 02-07-2019, 12:07 AM

seen a few vac/hydro clutch brake pedal rods come with 2 holes . cut the pin from the removed setup and weld it in and pop the 2 extra studs from the fire wall side and good to go . i personally did it years ago on one and drove it a few years .

Vintage Windmills · 02-07-2019, 07:19 PM

Thanks guys if you have pics that would be great.

Anyone know which trucks got the hydraulic clutch?

sweetk30 · 02-07-2019, 07:53 PM

85-91 square body style is what you need .

**1774btcrew** · 02-12-2019, 07:27 PM

What price range are you looking in? The hydroboost brakes seems to be the harder hydraulic pedal assembly to come by.

Vintage Windmills · 02-12-2019, 11:28 PM

Quote:

Originally Posted by 1774btcrew

What price range are you looking in? The hydroboost brakes seems to be the harder hydraulic pedal assembly to come by.

I don't know, what are they worth? One yard told me $75 pulled out the door for a mech clutch one.

SunSoaked · 02-13-2019, 01:22 PM

85-87 had the hydraulic clutch. They are hard to find. I have a set of all three variations:
Auto/vac
Auto/hydroboost
Manual/ hydroboost
Took me a couple years to collect them.
Going rate for manual/hydroboost is $300-350 for those that know what they have. For those who don't, I've seen them sell for $50.
95% of them will need rebuilt
(bushings, pads, pins welded up and possibly a crossbolt).

**1774btcrew** · 02-13-2019, 07:41 PM

Quote:

Originally Posted by Vintage Windmills

I don't know, what are they worth? One yard told me $75 pulled out the door for a mech clutch one.

I would think eBay is the best or at least the quickest route to find one. They pop up semi regularly .

lowrollin70gmc · 02-13-2019, 10:20 PM

Quote:

Originally Posted by Vintage Windmills

Thanks guys if you have pics that would be great.

Anyone know which trucks got the hydraulic clutch?

Sorry for the delay, I got the setup pulled out of storage and here are some pics. 4 general pics and the close up is of the hydroboost brake pedal on this post, my next post will have a close up of the hydraulic clutch pedal.

If there are any measurements you need or closeups let me know.

lowrollin70gmc · 02-13-2019, 10:21 PM

Close up of hydraulic clutch pedal.

**1774btcrew** · 02-13-2019, 10:23 PM

If for some reason he doesn't want it, I am interested in purchasing

**1774btcrew** · 02-13-2019, 10:24 PM

Oops! Didn't realize you werent selling it!

Vintage Windmills · 02-18-2019, 12:56 PM

Thanks all for the pics and info. At the price they're going for I need to make sure I could get a chevy clutch master cylinder to work with the clutch setup behind the Cummins for the Getrag. Maybe I should just get a mechanical clutch one and adapt it for the dodge clutch master cylinder. I have the ability to fabricate.

It looks like these have a clutch safety switch? Is that to prevent starting if the clutch is not depressed? Thats a nice upgrade from the 67-72's.

lowrollin70gmc · 02-18-2019, 07:05 PM

Yes, there is a clutch safety switch. That’ll be nice when wiring up cruise control and for general safety, I’ll be wiring into the neutral safety switch circuit (previous automatic truck).

As far as clutch line and master options, I’ve done it two ways:

84 C1500 (truck that the pedals are going in): I plan on a stock GM master with an inverted flare to AN-3 adapter. Premade AN-3 braided stainless line to an adapter in the slave cylinder quick connect (2002 GM NV4500).

68 K20 w/ NV5600: I adapted the dodge master to the chevy firewall. Basically a square flange welded to the firewall that the master pushes into and twists 45 degrees to lock into place, exactly as designed on the Dodge. Then drilled a hole in the pedal and made a pushrod. Upside is that all trans components are “2004 Dodge 2500” when I go to the parts store.

74CustomK20 · 02-19-2019, 11:57 AM

Vintage if you still want my hydro/mechanical clutch setup just lmk. I've been stupid busy with work but I'll be out there today and can get it oulled.

Vintage Windmills · 04-05-2019, 04:27 PM

I need help. Can someone tell me if this piece is needed and where it goes? I think it goes with this setup but I don't see in the photos here or in other ones online.

**1774btcrew** · 04-05-2019, 04:49 PM

Quote:

Originally Posted by Vintage Windmills

I need help. Can someone tell me if this piece is needed and where it goes? I think it goes with this setup but I don't see in the photos here or in other ones online.

It mounts to the brake pedal where the rod for the master cylinder attaches. Also, without it, your brake lights won't work.

**1774btcrew** · 04-05-2019, 04:51 PM

Quote:

Originally Posted by Vintage Windmills

I need help. Can someone tell me if this piece is needed and where it goes? I think it goes with this setup but I don't see in the photos here or in other ones online.

nevermind, i looked at the picture again. I am pretty sure it is for trucks with cruise control

Vintage Windmills · 04-05-2019, 05:27 PM

Quote:

Originally Posted by 1774btcrew

nevermind, i looked at the picture again. I am pretty sure it is for trucks with cruise control

Thanks for your response. Yep, there is a separate bracket that is similar but a little different that pushes on the brake switch. This is the one in the foreground that is by the two rods in the pic below. Do you know if cruise trucks had another switch that this contacted? I assumed that the cruise was deactivated by the brake switch triggering.

sweetk30 · 04-05-2019, 08:36 PM

2 bolts / studs from dash frame down .
this bracket goes on pass side bolt / stud .
clutch / brake main unit goes up in the dash .
steering column goes up in place on the 2 bolts / studs .
once all tight this little bracket gets a single screw threw the dash to its little hole to keep the dash from rattling if i was the guess .

i just did this swap 1 week ago .

sweetk30 · 04-05-2019, 08:39 PM

closest pic i got .

left side you see a hex screw in dash just left of column stud hanging down .

right side you see open hole for same position .

that bracket sadwiches in the mix as i said and then a hex screw goes in to match the other side .

Vintage Windmills · 04-06-2019, 10:02 AM

Thank you sweetk30! Great info.

02-05-2019, 08:07 PM	#1
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	WTB: clutch pedal assembly. Ideally a hydroboost and hydraulic clutch assembly if they made such a combination. My truck is an 86 K30 with Cummins conversion in progress. Let me know if you have something. Thanks, Jud __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

02-06-2019, 08:35 PM	#2
74CustomK20 Registered User Join Date: Oct 2014 Location: Tell City, IN Posts: 637	Re: WTB: clutch pedal assembly. I have a hydroboost, but not hydraulic clutch if you don't find one. Outta my 74, If you think it'll swap over. __________________ Big Nate Carp. Local 224. Buy made in the USA! 03 F350 6.0 Daily Race Truck. 79 C70 366 Project Dump.

02-06-2019, 09:21 PM	#3
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	Re: WTB: clutch pedal assembly. I can probably make it work. Pics? Price shipped to 55020? __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

02-06-2019, 11:57 PM	#4
lowrollin70gmc Too many projects Join Date: Mar 2004 Location: Fargo, ND land of the flat hills Posts: 1,147	Re: WTB: clutch pedal assembly. There is a hydro boost / hydraulic assembly. (I have one to convert my 84 if you need measurements or pictures, but it’s not for sale) The hydraulic clutch assembly and support rods is the hard to find part, the hydro boost pedal will swap into a vacuum pedal assembly. __________________ Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" 70 GMC C1500 LWB My first truck: shaved, bagged, and more: the lowrollin70gmc 68 K20 Suburban 12V Cummins/NV5600/NP205/D60/11.5AAM 3.73s "Dakota Cadillac" 63 Chevy II Nova Coupe 250 I6/T56/4.56s "Economy car" 53 Willys Wagon 350/NV4500/BW4401/HP D44/9inch “Winter Wagon” 30 Model A 16 Focus ST

02-07-2019, 12:07 AM	#5
sweetk30 Registered User Join Date: May 2012 Location: horseheads,ny rust belt Posts: 2,794	Re: WTB: clutch pedal assembly. seen a few vac/hydro clutch brake pedal rods come with 2 holes . cut the pin from the removed setup and weld it in and pop the 2 extra studs from the fire wall side and good to go . i personally did it years ago on one and drove it a few years . __________________ 77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great.

02-07-2019, 07:19 PM	#6
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	Re: WTB: clutch pedal assembly. Thanks guys if you have pics that would be great. Anyone know which trucks got the hydraulic clutch? __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

02-07-2019, 07:53 PM	#7
sweetk30 Registered User Join Date: May 2012 Location: horseheads,ny rust belt Posts: 2,794	Re: WTB: clutch pedal assembly. 85-91 square body style is what you need . __________________ 77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great.

02-12-2019, 07:27 PM	#8
1774btcrew Senior Member Join Date: Jun 2009 Location: Phoenix AZ Posts: 4,603	Re: WTB: clutch pedal assembly. What price range are you looking in? The hydroboost brakes seems to be the harder hydraulic pedal assembly to come by. __________________ AZPartsLocators on Instagram 1972 Cheyenne Super Short Bed big block "Blackie" 1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog" 1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck.

02-13-2019, 01:22 PM	#10
SunSoaked Registered User Join Date: Dec 2011 Location: Yuma Arizona Posts: 1,525	Re: WTB: clutch pedal assembly. 85-87 had the hydraulic clutch. They are hard to find. I have a set of all three variations: Auto/vac Auto/hydroboost Manual/ hydroboost Took me a couple years to collect them. Going rate for manual/hydroboost is $300-350 for those that know what they have. For those who don't, I've seen them sell for $50. 95% of them will need rebuilt (bushings, pads, pins welded up and possibly a crossbolt).

02-13-2019, 10:21 PM	#13
lowrollin70gmc Too many projects Join Date: Mar 2004 Location: Fargo, ND land of the flat hills Posts: 1,147	Re: WTB: clutch pedal assembly. Close up of hydraulic clutch pedal. Attached Images __________________ Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" 70 GMC C1500 LWB My first truck: shaved, bagged, and more: the lowrollin70gmc 68 K20 Suburban 12V Cummins/NV5600/NP205/D60/11.5AAM 3.73s "Dakota Cadillac" 63 Chevy II Nova Coupe 250 I6/T56/4.56s "Economy car" 53 Willys Wagon 350/NV4500/BW4401/HP D44/9inch “Winter Wagon” 30 Model A 16 Focus ST

02-13-2019, 10:23 PM	#14
1774btcrew Senior Member Join Date: Jun 2009 Location: Phoenix AZ Posts: 4,603	Re: WTB: clutch pedal assembly. If for some reason he doesn't want it, I am interested in purchasing __________________ AZPartsLocators on Instagram 1972 Cheyenne Super Short Bed big block "Blackie" 1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog" 1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck.

02-13-2019, 10:24 PM	#15
1774btcrew Senior Member Join Date: Jun 2009 Location: Phoenix AZ Posts: 4,603	Re: WTB: clutch pedal assembly. Oops! Didn't realize you werent selling it! __________________ AZPartsLocators on Instagram 1972 Cheyenne Super Short Bed big block "Blackie" 1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog" 1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck.

02-18-2019, 12:56 PM	#16
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	Re: WTB: clutch pedal assembly. Thanks all for the pics and info. At the price they're going for I need to make sure I could get a chevy clutch master cylinder to work with the clutch setup behind the Cummins for the Getrag. Maybe I should just get a mechanical clutch one and adapt it for the dodge clutch master cylinder. I have the ability to fabricate. It looks like these have a clutch safety switch? Is that to prevent starting if the clutch is not depressed? Thats a nice upgrade from the 67-72's. __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

02-18-2019, 07:05 PM	#17
lowrollin70gmc Too many projects Join Date: Mar 2004 Location: Fargo, ND land of the flat hills Posts: 1,147	Re: WTB: clutch pedal assembly. Yes, there is a clutch safety switch. That’ll be nice when wiring up cruise control and for general safety, I’ll be wiring into the neutral safety switch circuit (previous automatic truck). As far as clutch line and master options, I’ve done it two ways: 84 C1500 (truck that the pedals are going in): I plan on a stock GM master with an inverted flare to AN-3 adapter. Premade AN-3 braided stainless line to an adapter in the slave cylinder quick connect (2002 GM NV4500). 68 K20 w/ NV5600: I adapted the dodge master to the chevy firewall. Basically a square flange welded to the firewall that the master pushes into and twists 45 degrees to lock into place, exactly as designed on the Dodge. Then drilled a hole in the pedal and made a pushrod. Upside is that all trans components are “2004 Dodge 2500” when I go to the parts store. __________________ Andrew 84 GMC C1500 SWB 6.2 Diesel/700R4/3.42 "Grandpa's odd duck" 70 GMC C1500 LWB My first truck: shaved, bagged, and more: the lowrollin70gmc 68 K20 Suburban 12V Cummins/NV5600/NP205/D60/11.5AAM 3.73s "Dakota Cadillac" 63 Chevy II Nova Coupe 250 I6/T56/4.56s "Economy car" 53 Willys Wagon 350/NV4500/BW4401/HP D44/9inch “Winter Wagon” 30 Model A 16 Focus ST

02-19-2019, 11:57 AM	#18
74CustomK20 Registered User Join Date: Oct 2014 Location: Tell City, IN Posts: 637	Re: WTB: clutch pedal assembly. Vintage if you still want my hydro/mechanical clutch setup just lmk. I've been stupid busy with work but I'll be out there today and can get it oulled. __________________ Big Nate Carp. Local 224. Buy made in the USA! 03 F350 6.0 Daily Race Truck. 79 C70 366 Project Dump.



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04-05-2019, 04:27 PM	#19
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	Re: WTB: clutch pedal assembly. I need help. Can someone tell me if this piece is needed and where it goes? I think it goes with this setup but I don't see in the photos here or in other ones online. Attached Images __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

04-05-2019, 08:36 PM	#23
sweetk30 Registered User Join Date: May 2012 Location: horseheads,ny rust belt Posts: 2,794	Re: WTB: clutch pedal assembly. 2 bolts / studs from dash frame down . this bracket goes on pass side bolt / stud . clutch / brake main unit goes up in the dash . steering column goes up in place on the 2 bolts / studs . once all tight this little bracket gets a single screw threw the dash to its little hole to keep the dash from rattling if i was the guess . i just did this swap 1 week ago . __________________ 77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great.

04-05-2019, 08:39 PM	#24
sweetk30 Registered User Join Date: May 2012 Location: horseheads,ny rust belt Posts: 2,794	Re: WTB: clutch pedal assembly. closest pic i got . left side you see a hex screw in dash just left of column stud hanging down . right side you see open hole for same position . that bracket sadwiches in the mix as i said and then a hex screw goes in to match the other side . Attached Images __________________ 77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great.

04-06-2019, 10:02 AM	#25
Vintage Windmills Vintage 4x4s Join Date: Sep 2010 Location: Prior Lake, MN Posts: 4,305	Re: WTB: clutch pedal assembly. Thank you sweetk30! Great info. __________________ 67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ) 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6

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