Will a floor trans jack work? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Adams74Chevy · 02-17-2012, 02:00 PM

Will a floor trans jack work on a stock height '73 K20? I looks like that most I have found go from around 8"min. up to 24"max. I'd really just like to get a high lift trans. jack but working on a budget is the key right now.

Thanks,
Adam

lowrollin70gmc · 02-17-2012, 04:52 PM

You should be good. My belly is at 24" on my 68 K20 lifted 4" on 35s, so you should be below the 24" maximum range of the standard jack. At the worst you could measure it, but I'm guessing if that was possible you would've done it.

I'm going to work on a buddies 84 K30 this afternoon and I'll measure the distance to the tranny and subtract for the 4" lift and 37s if you want one from your body style.

Adams74Chevy · 02-17-2012, 06:14 PM

[QUOTE=lowrollin70gmc;5194708] At the worst you could measure it, but I'm guessing if that was possible you would've done it.
QUOTE]

I can but by the time I get home from work it's alread dark and then to get down in the muddy yard...I hoped somebody out there had tried and it worked or failed. I will probably measure tomorrow anyways. I'm hoping maybe I can work on it over the holiday weekend...but we'll see how far that gets.

propanemudtruck · 02-17-2012, 06:55 PM

[quote=Adams74Chevy;5194821]

Quote:

Originally Posted by lowrollin70gmc

At the worst you could measure it, but I'm guessing if that was possible you would've done it.
QUOTE]

I can but by the time I get home from work it's alread dark and then to get down in the muddy yard...I hoped somebody out there had tried and it worked or failed. I will probably measure tomorrow anyways. I'm hoping maybe I can work on it over the holiday weekend...but we'll see how far that gets.

I use a motorcycle jack from harbor freight. if it's too short, 6x6 wood blocks!

lowrollin70gmc · 02-17-2012, 10:57 PM

I was just under a lifted K30 and taking in account that he is lifted 4" and runs 37s (another 4" over stock tires (29s), you should be fine. He measured 27" to the pan, so subtract 8 and you're looking at approx 19", which gives you some wiggle room with a 24" jack.

And at the worst throw a few 2x4s or 4x4 chunks and get that extra few inches.

OrrieG · 02-18-2012, 02:14 AM

I have 74 K10 axles, tranny and transfer under mine. R&R with a 2.5 ton floor jack with no problems. Did have the cab off which made aligning it a little easier on the install.

andrewmp6 · 02-18-2012, 03:34 AM

Or worse case flatten your tires it will lower the truck just enough.

Adams74Chevy · 02-20-2012, 09:42 PM

Yesterday I picked up the transmission floor jack...maybe next weekend I can use it. It will be nice to have the trans leak fixed and the mount replaced.

02-17-2012, 02:00 PM	#1
Adams74Chevy Registered User Join Date: Mar 2009 Location: MD Posts: 417	Will a floor trans jack work? Will a floor trans jack work on a stock height '73 K20? I looks like that most I have found go from around 8"min. up to 24"max. I'd really just like to get a high lift trans. jack but working on a budget is the key right now. Thanks, Adam __________________ 2006 Silverado Crew Cab 1500 4x4 5.3L automatic 1986 M1008 CUCV 6.2L Detroit Diesel TH400 4.56 Detroit Locker rear NP208 1973 K20 "Silverado" 350ci, HEI, TH350, NP203 with 2wd conversion, A/C, power windows,tilt wheel, dual tanks. My '73ish K20 thread My 5yo son claims it as his. 1987 V20 Custom Deluxe 350 TH400 NP208 "farm truck" getting parted out. 2016 Nissan Altima grocery getter/commuter

02-17-2012, 04:52 PM	#2
lowrollin70gmc Too many projects Join Date: Mar 2004 Location: Fargo, ND land of the flat hills Posts: 1,147	Re: Will a floor trans jack work? You should be good. My belly is at 24" on my 68 K20 lifted 4" on 35s, so you should be below the 24" maximum range of the standard jack. At the worst you could measure it, but I'm guessing if that was possible you would've done it. I'm going to work on a buddies 84 K30 this afternoon and I'll measure the distance to the tranny and subtract for the 4" lift and 37s if you want one from your body style. __________________ 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

02-17-2012, 06:14 PM	#3
Adams74Chevy Registered User Join Date: Mar 2009 Location: MD Posts: 417	Re: Will a floor trans jack work? [QUOTE=lowrollin70gmc;5194708] At the worst you could measure it, but I'm guessing if that was possible you would've done it. QUOTE] I can but by the time I get home from work it's alread dark and then to get down in the muddy yard...I hoped somebody out there had tried and it worked or failed. I will probably measure tomorrow anyways. I'm hoping maybe I can work on it over the holiday weekend...but we'll see how far that gets. __________________ 2006 Silverado Crew Cab 1500 4x4 5.3L automatic 1986 M1008 CUCV 6.2L Detroit Diesel TH400 4.56 Detroit Locker rear NP208 1973 K20 "Silverado" 350ci, HEI, TH350, NP203 with 2wd conversion, A/C, power windows,tilt wheel, dual tanks. My '73ish K20 thread My 5yo son claims it as his. 1987 V20 Custom Deluxe 350 TH400 NP208 "farm truck" getting parted out. 2016 Nissan Altima grocery getter/commuter

02-17-2012, 10:57 PM	#5
lowrollin70gmc Too many projects Join Date: Mar 2004 Location: Fargo, ND land of the flat hills Posts: 1,147	Re: Will a floor trans jack work? I was just under a lifted K30 and taking in account that he is lifted 4" and runs 37s (another 4" over stock tires (29s), you should be fine. He measured 27" to the pan, so subtract 8 and you're looking at approx 19", which gives you some wiggle room with a 24" jack. And at the worst throw a few 2x4s or 4x4 chunks and get that extra few inches. __________________ 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

02-18-2012, 02:14 AM	#6
OrrieG Registered User Join Date: Jun 2006 Location: Idaho Posts: 8,800	Re: Will a floor trans jack work? I have 74 K10 axles, tranny and transfer under mine. R&R with a 2.5 ton floor jack with no problems. Did have the cab off which made aligning it a little easier on the install. __________________ 1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread 1964 Chevelle Malibu w/ 355-350TH (daily driver) Helpful AD and TF Manual Site Old Car Manual Project

02-18-2012, 03:34 AM	#7
andrewmp6 Registered User Join Date: Jan 2009 Location: Louisville,Ky Posts: 5,811	Re: Will a floor trans jack work? Or worse case flatten your tires it will lower the truck just enough.

02-20-2012, 09:42 PM	#8
Adams74Chevy Registered User Join Date: Mar 2009 Location: MD Posts: 417	Re: Will a floor trans jack work? Yesterday I picked up the transmission floor jack...maybe next weekend I can use it. It will be nice to have the trans leak fixed and the mount replaced. __________________ 2006 Silverado Crew Cab 1500 4x4 5.3L automatic 1986 M1008 CUCV 6.2L Detroit Diesel TH400 4.56 Detroit Locker rear NP208 1973 K20 "Silverado" 350ci, HEI, TH350, NP203 with 2wd conversion, A/C, power windows,tilt wheel, dual tanks. My '73ish K20 thread My 5yo son claims it as his. 1987 V20 Custom Deluxe 350 TH400 NP208 "farm truck" getting parted out. 2016 Nissan Altima grocery getter/commuter



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