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 > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-01-2017, 10:23 AM   #1
Korted
Registered User
 
Join Date: Oct 2016
Location: Seneca, KS
Posts: 12
Also needing a driveshaft

I have read quite a few threads here about driveshafts. One common recommendation is not to trust anyone else's measurements, as all installations are a little different. I hate to ask the same questions as previous threads, but my case is a little different than any I have read. Here is what I have:

2000 LM7 with 4L60E swapped into LWB 1968 C10 with coil springs. trans is mounted to stock 1968 crossmember with 2000 isolator.
Distance from back face of 4L60E tailhousing to center of diff u-joint = 71.25"
At normal stance, measurement from centerline (trans output to diff u-joint) to bottom of crossmember is 2.25"
Distance from 4L60E tailhousing to crossmember is ~30", crossmember to axle is ~50"

If I use a 3" 1-piece driveshaft, I will have 0.75" clearance at normal stance, and will not hit the crossmember until the axle drops 1.25".

Is this enough clearance? I like the simplicity of a 1-piece driveshaft, but am not sure it's the right way to go. TIA for the input. The information here has been invaluable so far, and I'm sure someone out there has recommendations for this one as well. Thanks!
Korted is offline   Reply With Quote
Old 03-01-2017, 11:15 AM   #2
PGSigns
Senior Member
 
PGSigns's Avatar
 
Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
Re: Also needing a driveshaft

1 1/4" is not much travel at all. I would say it would be a problem. If you want to go one piece I would go Aluminum at that length and mod the cross member.
Jimmy
__________________
60 to 66 Chevy and GMC window decals
http://67-72chevytrucks.com/vboard/s...d.php?t=661131
Good friends, good food and a hotrod what else do you need?
1966 BBW long fleet Daily driver
1965 BBW short fleet Sold and going to a good home
1965 Suburban
2003 3500 Duramax
2005 Ultra Classic
PGSigns is offline   Reply With Quote
Old 03-09-2017, 12:19 PM   #3
Korted
Registered User
 
Join Date: Oct 2016
Location: Seneca, KS
Posts: 12
Re: Also needing a driveshaft

So I'm committing to a 2-piece driveshaft rather than modify the crossmember. Any recommendations for donor vehicles? Hoping to find TH350/4L60E yoke, short shaft, and carrier bearing from the same vehicle. ALL driveshaft/machine shops within 120 miles recommend bringing in driveshafts to shorten rather than starting 100% new.
Korted is offline   Reply With Quote
Old 03-09-2017, 08:57 PM   #4
nsb29
Senior Member
 
nsb29's Avatar
 
Join Date: Feb 2014
Location: new smyrna beach fl / 29 palms cal
Posts: 1,727
Re: Also needing a driveshaft

Dennys drive line cheaper stronger guaranteed
nsb29 is offline   Reply With Quote
Reply

Bookmarks

Tags
drive shaft, ls swap, lwb


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 02:45 PM.


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