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 07-03-2007, 01:50 PM   #1
low '71
Registered User
 
Join Date: Jun 2007
Location: Manitoba, Canada
Posts: 30
drive shaft loop

Im fixin up a 71 GMC long box, i want to eliminate the drive shaft loop and keep the stock suspension setup can i simply remove the loop and brace the crossmember that the driveshaft originally ran through and the suspension connects to?



Please ignore spelling errors if there are any
low '71 is offline   Reply With Quote
Old 07-03-2007, 02:37 PM   #2
71tahoe
Registered User
 
71tahoe's Avatar
 
Join Date: May 2006
Location: Jonesboro, AR
Posts: 916
Re: drive shaft loop

What exactly is your goal here?

With enough engineering anything can be done but the end result may give the desired functionality at the cost of something else. That crossmember really needs to remain structurally intact and cutting the top or bottom out of the loop would compromise it. The trailing arms attach there and all the torque from acceleration/deceleration acts on that crosssmember. Also, the carrier bearing still needs that solid attachment point unless you are installing a 1 piece driveshaft.

Can it be done, yes. Should it be done, not in my opinion. Any modification of that member should be "loop" style.

Last edited by 71tahoe; 07-03-2007 at 02:38 PM.
71tahoe is offline   Reply With Quote
Old 07-03-2007, 05:46 PM   #3
low '71
Registered User
 
Join Date: Jun 2007
Location: Manitoba, Canada
Posts: 30
Re: drive shaft loop

my plan was to get another frame and cut and weld pieces to form a triangle facing the front of the truck should i plan more bracing? (looking to run as much power as the budget allows)

The whole point of eliminating the driveshaft loop was so i could run a stronger one piece driveshaft.
low '71 is offline   Reply With Quote
Old 07-03-2007, 06:16 PM   #4
57sailplane
Senior Member
 
57sailplane's Avatar
 
Join Date: Mar 2004
Location: Nebraska
Posts: 583
Re: drive shaft loop

dont remove it just modify it. cut the botom of the loop out and extend it down so it clears the one piece drive shaft.. i would reinforce it also...
57sailplane is offline   Reply With Quote
Old 07-03-2007, 06:43 PM   #5
stsalvage
Scrapper 1
 
stsalvage's Avatar
 
Join Date: Jan 2007
Location: Riverside Calif
Posts: 1,649
Re: drive shaft loop

I have a 1968 3 door suburban that is been channled and C notched and its running a 350 with a 400 with a one peace drive shaft and No cutting was done only problem with doing that sence i bought it it some times Vibrates i will show a picture no need for cuttingthis suburban sitting pretty low and has flow masters tucked in right next to it
Attached Images
     
stsalvage is offline   Reply With Quote
Old 07-04-2007, 12:07 AM   #6
low '71
Registered User
 
Join Date: Jun 2007
Location: Manitoba, Canada
Posts: 30
Thumbs up Re: drive shaft loop

Thanks for the tips I did not know that it would be possible to actually run the drive shaft through the loop without rubbing thanks again and hope i can help soon


By the way nice truck

Last edited by low '71; 07-04-2007 at 12:10 AM.
low '71 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 09:25 PM.


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