The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board > Squarebody Projects and Builds

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-13-2016, 09:49 PM   #1
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Farm truck refresh

I picked up my 79 C30 a couple of years ago to haul rock on the acreage that we purchased. It is a 350/400 with a dumping flatbed.

A couple of weeks ago I lost oil pressure while hauling my mower. I have decided to update the drive train to a TBI 350 and a 4L80e.

I've tried to upload pics but they always show upside down....

Last edited by Mavis79; 03-13-2016 at 10:09 PM.
Mavis79 is offline   Reply With Quote
Old 03-13-2016, 10:29 PM   #2
Blessed66
Registered User
 
Blessed66's Avatar
 
Join Date: Oct 2012
Location: Tyler, Texas
Posts: 217
Re: Farm truck refresh

Quote:
Originally Posted by Mavis79 View Post
I've tried to upload pics but they always show upside down....
Try using an image hosting website, like Photobucket (for example). I've never had the problem.
__________________
Current Projects:
1984 GMC, LWB Fleetside, 305/350 - Currently Doing TBI Conversion
1966 GMC, SWB Stepside, 350/200-4R - Currently waiting patiently.
Blessed66 is offline   Reply With Quote
Old 03-13-2016, 11:16 PM   #3
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

Current photos...
Attached Images
  
Mavis79 is offline   Reply With Quote
Old 03-14-2016, 03:59 AM   #4
MTCK
Registered User
 
MTCK's Avatar
 
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
Re: Farm truck refresh

Cool truck. You will like the 4l80e.
__________________
-Marcus

1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's
1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow
2022 Silverado 3500 L8T
Project Daily Driver
Project Heavy Hauler
Project Plow Truck
MTCK is offline   Reply With Quote
Old 03-14-2016, 02:17 PM   #5
Blessed66
Registered User
 
Blessed66's Avatar
 
Join Date: Oct 2012
Location: Tyler, Texas
Posts: 217
Re: Farm truck refresh

Gonna keep that bed on? (I would, just saying)

__________________
Current Projects:
1984 GMC, LWB Fleetside, 305/350 - Currently Doing TBI Conversion
1966 GMC, SWB Stepside, 350/200-4R - Currently waiting patiently.
Blessed66 is offline   Reply With Quote
Old 03-14-2016, 03:04 PM   #6
allengator
Registered User
 
allengator's Avatar
 
Join Date: Dec 2010
Location: Burleson, Texas
Posts: 596
Re: Farm truck refresh

Quote:
Originally Posted by Blessed66 View Post
Gonna keep that bed on? (I would, just saying)

I agree!!! cool truck!
__________________
Allengator
Outta the Blue
(my band - available for hire in the DFW area!)

1980 Chevy SWB Pickup (build thread)

1951 Chevy Sedan Delivery
2004 Chevy Tahoe Z71
2011 Harley Davidson Street Glide
2018 Silverado Z71 Crew Cab
allengator is offline   Reply With Quote
Old 03-14-2016, 07:04 PM   #7
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

Quote:
Originally Posted by Blessed66 View Post
Gonna keep that bed on? (I would, just saying)

Absolutely, I still use it as a farm truck. The dump gets used for hauling rock, firewood and hay.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 03-19-2016, 10:04 PM   #8
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

I got the motor dressed and was ready to put transmission on and found out that the two flexplates that I have seem to have different offsets. The original flexplate the came with a 4L80 looks to have 1/16th more offset than the 4L60 flexplate that came with the engine.

The 4L60 flexplate will fit my torque converter but only three bolts will mount. I'm not sure if there are any other implications of doing this.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 03-19-2016, 11:34 PM   #9
MTCK
Registered User
 
MTCK's Avatar
 
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
Re: Farm truck refresh

So you are running a 4l80e behind a 350 that had a 4l60 originally? And what torque converter are you using?
__________________
-Marcus

1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's
1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow
2022 Silverado 3500 L8T
Project Daily Driver
Project Heavy Hauler
Project Plow Truck
MTCK is offline   Reply With Quote
Old 03-20-2016, 12:11 AM   #10
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

Torque converter is from the 4L80e. The original engine that was bolted to the 80 had a cracked head. I got a good deal on a "lightly" used crate 350 from another wrecked truck that had a 4L60.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 03-22-2016, 11:22 PM   #11
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

Engine and trans mated...wiring harness installed hope to get it in the truck this week
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 03-23-2016, 03:11 AM   #12
MTCK
Registered User
 
MTCK's Avatar
 
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
Re: Farm truck refresh

Looks good. Who did you get your harness from?
__________________
-Marcus

1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's
1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow
2022 Silverado 3500 L8T
Project Daily Driver
Project Heavy Hauler
Project Plow Truck
MTCK is offline   Reply With Quote
Old 03-23-2016, 11:20 AM   #13
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

Harness came from FuelInjectionConnection.com out of Colorado...cheaper than Howell, but they haven't returned emails/questions....The harness appears to be of good quality.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 03-27-2016, 12:17 AM   #14
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

Made progress...engine and trans are in place.

__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 03-27-2016, 12:22 AM   #15
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

Modified the sending unit from the 95 to fit the fuel tank from the 79. So I'll use the stock 95 fuel pump.



I didn't get pictures but I also cut down the trans crossmember from the 95 to fit the 79...
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 03-27-2016, 05:32 AM   #16
MTCK
Registered User
 
MTCK's Avatar
 
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
Re: Farm truck refresh

Nice work. What are you doing for a PCM? I'm not super up to speed on the tbi computers but I have one that will be homeless in a couple weeks from my crew (5.7 4l80e).
__________________
-Marcus

1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's
1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow
2022 Silverado 3500 L8T
Project Daily Driver
Project Heavy Hauler
Project Plow Truck
MTCK is offline   Reply With Quote
Old 03-27-2016, 01:38 PM   #17
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

I've got a 6395 PCM from a salvage yard truck...I may be interested in the DRAC module.

I did find out why my gauges don't work. It seems a prior owner thought he was an electrician...it a mess under the dash.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala

Last edited by Mavis79; 03-27-2016 at 02:07 PM.
Mavis79 is offline   Reply With Quote
Old 03-27-2016, 02:52 PM   #18
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

What are your plans for the crew?

Never mind, just realized it is you project heavy hauler.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 03-27-2016, 08:57 PM   #19
MTCK
Registered User
 
MTCK's Avatar
 
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
Re: Farm truck refresh

Yeah it's getting a fresh motor. I think I need to keep the DRAC for my speedo to work but I'll look into it.
__________________
-Marcus

1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's
1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow
2022 Silverado 3500 L8T
Project Daily Driver
Project Heavy Hauler
Project Plow Truck
MTCK is offline   Reply With Quote
Old 04-11-2016, 03:59 PM   #20
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

Finally got back to tinkering on the truck (my son's car blew a brake line and I've been working 6-7 days a week) only to realize that the exhaust manifolds from the newer truck (88-95) I have won't work. I've got the engine in, but I won't be able to install the O2 sensor in the driver's side manifold. the hole for the sensor is directly centered and up against the upper frame rail. Are the 87-91 TBI manifolds different...I thought I saw a picture with the O2 sensor mounted towards the rear of the truck...
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 04-11-2016, 04:05 PM   #21
MTCK
Registered User
 
MTCK's Avatar
 
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
Re: Farm truck refresh

It was on the y-pipe on my 91.
__________________
-Marcus

1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's
1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow
2022 Silverado 3500 L8T
Project Daily Driver
Project Heavy Hauler
Project Plow Truck
MTCK is offline   Reply With Quote
Old 05-27-2016, 11:20 AM   #22
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

Well, it's been awhile so I figured I'd give an update...

I built a new Trans cross member from rectangle tube stock, and went to finish the wiring only to find I was no longer getting power to the truck. I suspect the "wiring job" completed by the previous owner in the cab. This together with the fact that the cab mounts are rusted, floor pans were poorly patched (sheet metal riveted over the rust), and rocker/cab corners are shot I went and found a decent '80 cab.

So like so many other projects, what started out as a "simple" drive train swap now involves a complete cab swap....pics to come....
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Old 05-29-2016, 02:17 AM   #23
LT7A
Registered User
 
Join Date: Oct 2015
Location: PNW
Posts: 3,626
Re: Farm truck refresh

Really like the yellow and white. Good luck!
LT7A is offline   Reply With Quote
Old 05-29-2016, 04:15 AM   #24
MTCK
Registered User
 
MTCK's Avatar
 
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
Re: Farm truck refresh

Exciting. Looking forward to the pics. Keeping the color scheme?
__________________
-Marcus

1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's
1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow
2022 Silverado 3500 L8T
Project Daily Driver
Project Heavy Hauler
Project Plow Truck
MTCK is offline   Reply With Quote
Old 05-30-2016, 10:32 PM   #25
Mavis79
Registered User
 
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
Re: Farm truck refresh

The new cab is brown but I think I'll repaint to the yellow and white. Old cab is off and the frame is cleaned and primed.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold)
84 K10 Extended Cab 350TBI/TH350
98 C3500HD 6.5/NV4500 Dump
03 Silverado 2500HD 6.6/Allison
07 Ford Escape Hybrid (Commuter)
15 Chevy Impala
Mavis79 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:09 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com