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 04-04-2016, 11:20 PM   #1
Platinum00
Registered User
 
Join Date: Mar 2014
Location: Surprise AZ
Posts: 44
Drop question

Sorry this might be a stupid question. I have a 1967 long bed with a 2 piece shaft if I drop it 5" in the rear will I need a drop cross member or should I be fine? Already having a bad day my new wheels will need 1/2" spacer in the rear dang it lol. Thanks for the help everyone.
Platinum00 is offline   Reply With Quote
Old 04-04-2016, 11:24 PM   #2
Platinum00
Registered User
 
Join Date: Mar 2014
Location: Surprise AZ
Posts: 44
Posted via Mobile Device
Attached Images
 
Platinum00 is offline   Reply With Quote
Old 04-05-2016, 07:56 AM   #3
Ironangel
Senior Member
 
Ironangel's Avatar
 
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
Re: Drop question

Quote:
Originally Posted by Platinum00 View Post
Sorry this might be a stupid question. I have a 1967 long bed with a 2 piece shaft if I drop it 5" in the rear will I need a drop cross member or should I be fine? Already having a bad day my new wheels will need 1/2" spacer in the rear dang it lol. Thanks for the help everyone.
Your two piece drive shaft should be fine as far as crossmember clearance goes. The problem may be in "length" because when you drop the truck the available clearance in the slip joint is reduced. In some cases binding occurs and pinon bearings, u-joints, and output shaft bearings in the transmission take a beating. A 5" rear drop will require a look at drive shaft end play clearance, and an adjustable or shortened panhard bar, and relocated shock mounts with "shorty shocks" designed for stroke clearance within the available stroke range.
__________________
Michael of the clan Hill,
"Two Seventy Two's"
71 1-ton Dually 350 4-Speed
71 C/50 Grain Truck, 350 Split-Axle 4-Speed
02 3/4 ton Express
14 Indian Chief Vintage
1952 Ford 8N, "Only Ford Allowed On The Property"
"Be American, Buy American"
Ironangel is offline   Reply With Quote
Reply

Bookmarks


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 06:08 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com