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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-30-2020, 08:01 PM   #1
Peanut74
Registered User
 
Join Date: May 2018
Location: Prattville, AL
Posts: 67
Drive shaft question

For some reason I cannot use the search feature when I use my phone
So please bear with me.

I did a LWB to SWB conversion and the drive shaft is now 12" to long. My question is should I shorten the two piece drive shaft or get a one peice drive shaft made?
Thanks
Peanut74 is offline   Reply With Quote
Old 06-30-2020, 08:12 PM   #2
tutone
Registered User
 
tutone's Avatar
 
Join Date: Mar 2016
Location: hickory, ky
Posts: 393
Re: Drive shaft question

I've done both. If I remember correctly you will need to shorten 11 3/8ths to retain the 2 pc. If you can get a one piece, you will never have to fool with the carrier bearing again. A big plus.
__________________
:My build thread
http://67-72chevytrucks.com/vboard/s...d.php?t=807535
tutone is offline   Reply With Quote
Old 06-30-2020, 08:13 PM   #3
Andy4639
Orignal Goof member
 
Andy4639's Avatar
 
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 18,820
Thumbs up Re: Drive shaft question

I would do the 1 piece. I have one in my 71 LWB truck.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


http://upstategmtrucks.com/



Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
Andy4639 is offline   Reply With Quote
Old 06-30-2020, 11:06 PM   #4
mr48chev
Registered User
 
mr48chev's Avatar
 
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 11,934
Re: Drive shaft question

You should have shortened the frame in front of the crossmember that the rear control arms fasten to meaning that the driveshaft still pivots on the joint at that point. That in turn means you need to shorten the front half of the driveshaft.
__________________
Founding member of the too many projects, too little time and money club.

My ongoing truck projects:
48 Chev 3100 that will run a 292 Six.
71 GMC 2500 that is getting a Cad 500 transplant.
77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.
mr48chev is online now   Reply With Quote
Old 07-01-2020, 09:39 AM   #5
americanmusc1e
Senior Member
 
americanmusc1e's Avatar
 
Join Date: Jan 2009
Location: Austin, TX
Posts: 1,005
Re: Drive shaft question

I got a 1310 one piece driveshaft off of ebay. Here

That one is for a Th400 yoke. You'll have to measure the length and confirm the yoke you need. I also had to removed the center support hanger. That driveshaft has done fairly well for me even with 500whp. No slicks yet.

__________________
-- Josh

OLD SKOOL-- 1970 C10. turbo 5.3/Th400/3.07 posi Build Thread
FARM TRUCK----1949 Chevrolet 3800 Power Wagon Hauler Build Thread

1998 C2500 - New daily

DM me if you can't see photos i posted
americanmusc1e is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 07:13 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com