3 rear driveshafts, and three measurements, hmm.. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*Fast68Chevy* · 04-05-2002, 04:31 PM

interesting, i just measured up length of 3 different rear driveshafts for lwb 1/2 ton 12 bolt trucks and got three barely different measurements, 36 1/8", 36 3/16", and 36 1/4", hmmmm.. thats interesting, I wonder why the minute difference in lengths ?

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Randy- Lincoln, IL
r68c30@hotmail.com

71 C-10, trying to assemble....sigh..
parting out 5.0LTPI '81 cutlass supreme brougham
*Paint is overrated
© RSS Enterprises 2000

**COBALT** · 04-05-2002, 04:49 PM

1/16" difference either way? What's the allowable tollerance to the length of the driveshaft for that model? Do you have any specs on paper? These things are welded maybe they allow that much tolerance ???

The play has to be made up either at the tranny, and the differential, or somehow at the center bearing if it has one...

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'69 3/4 ton C20 2wd w/ 350ci/400THM and a wood bed!
'69 3/4 ton Custom 20 2wd w/ ORIGINAL 350ci/4sp Manual and a wood bed (parts beast).
Seattle, WA.

*See pics of my trucks and project at www.webshots.com!

*Fast68Chevy* · 04-05-2002, 11:01 PM

i guess that could be leeway for toleranc,e but still hm insteresting.. not sure howe the rear can slip on auto trans models, the only slip splines are at the tranny tail, so.. hmmm.. everytihng else is solid,

4 speed driveshafts are totally different.,.
i stil have another shaft to measure and see, if I find time to dig it out in the next couple weeks. im curious...

------------------
Randy- Lincoln, IL
r68c30@hotmail.com

71 C-10, trying to assemble....sigh..
parting out 5.0LTPI '81 cutlass supreme brougham
*Paint is overrated
© RSS Enterprises 2000

04-05-2002, 04:31 PM	#1
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	3 rear driveshafts, and three measurements, hmm.. interesting, i just measured up length of 3 different rear driveshafts for lwb 1/2 ton 12 bolt trucks and got three barely different measurements, 36 1/8", 36 3/16", and 36 1/4", hmmmm.. thats interesting, I wonder why the minute difference in lengths ? ------------------ Randy- Lincoln, IL r68c30@hotmail.com 71 C-10, trying to assemble....sigh.. parting out 5.0LTPI '81 cutlass supreme brougham *Paint is overrated © RSS Enterprises 2000

04-05-2002, 04:49 PM	#2
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	1/16" difference either way? What's the allowable tollerance to the length of the driveshaft for that model? Do you have any specs on paper? These things are welded maybe they allow that much tolerance ??? The play has to be made up either at the tranny, and the differential, or somehow at the center bearing if it has one... ------------------ '69 3/4 ton C20 2wd w/ 350ci/400THM and a wood bed! '69 3/4 ton Custom 20 2wd w/ ORIGINAL 350ci/4sp Manual and a wood bed (parts beast). Seattle, WA. *See pics of my trucks and project at www.webshots.com! __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

04-05-2002, 11:01 PM	#3
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	i guess that could be leeway for toleranc,e but still hm insteresting.. not sure howe the rear can slip on auto trans models, the only slip splines are at the tranny tail, so.. hmmm.. everytihng else is solid, 4 speed driveshafts are totally different.,. i stil have another shaft to measure and see, if I find time to dig it out in the next couple weeks. im curious... ------------------ Randy- Lincoln, IL r68c30@hotmail.com 71 C-10, trying to assemble....sigh.. parting out 5.0LTPI '81 cutlass supreme brougham *Paint is overrated © RSS Enterprises 2000



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