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 06-22-2005, 12:38 AM   #1
tomatocity
Registered User
 
tomatocity's Avatar
 
Join Date: Jun 2005
Location: Sacramento CA
Posts: 1,255
Rear leaf springs

I looked at a 1970 C10 that has rear leaf springs.
-What is the history for the rear leaf springs?
-Why would one truck have leaf springs and the other has rear coil springs?
-What is the best way to lower a 1970 C10 with rear leaf springs?
Thanks in advance. Tim
__________________
Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck.
tomatocity is offline   Reply With Quote
Old 06-22-2005, 01:35 AM   #2
muddpile
Registered User
 
muddpile's Avatar
 
Join Date: Dec 2004
Location: Saskatchewan, Canada
Posts: 1,371
I can't answer many questions, but to lower it, flip the rear axle from under the springs to on top of them like a car or S10 would have. That will lower it 5 inches or so. I've always assumed that the leafs were ordered to haul more. Coil trucks don't seem to take a load as well. There were a lot more coil trucks if I recall correctly.
muddpile is offline   Reply With Quote
Old 06-22-2005, 01:50 AM   #3
tomatocity
Registered User
 
tomatocity's Avatar
 
Join Date: Jun 2005
Location: Sacramento CA
Posts: 1,255
Thank you. That confirms what I was thinking. I have seen flip kits but I have never seen it done. Would I have to have the spring perches relocated to the top of the axle housing? 5" would mean C-notch the frame. Would this mean I need to use 2.5" drop spindles and 1" front lowering springs to get the truck level?

Quote:
Originally Posted by muddpile
I can't answer many questions, but to lower it, flip the rear axle from under the springs to on top of them like a car or S10 would have. That will lower it 5 inches or so. I've always assumed that the leafs were ordered to haul more. Coil trucks don't seem to take a load as well. There were a lot more coil trucks if I recall correctly.
__________________
Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck.
tomatocity is offline   Reply With Quote
Old 06-22-2005, 06:00 AM   #4
JIMs70GMC
user # 2756
 
JIMs70GMC's Avatar
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
You could also remove leaves, or get longer shackles. It seems the chevies were coil and gmc leaves with the other being an option for both. I have a dan60 rear w/ leaves out of a 71 C20. Of course the 4wds all had rear leaves.
__________________
1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.

1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
JIMs70GMC is offline   Reply With Quote
Old 06-22-2005, 07:19 AM   #5
A.P.
Black 72 Chevy
 
A.P.'s Avatar
 
Join Date: May 2002
Location: Los Angeles, California
Posts: 662
Some info on leaf springs and coils.
http://www.earlyclassic.com/Tech.asp...=Spring%20Time
A.P. is offline   Reply With Quote
Old 06-22-2005, 03:53 PM   #6
tomatocity
Registered User
 
tomatocity's Avatar
 
Join Date: Jun 2005
Location: Sacramento CA
Posts: 1,255
Thanks for the link. This is something all of us should read. Excellent!

Quote:
Originally Posted by A.P.
Some info on leaf springs and coils.
http://www.earlyclassic.com/Tech.asp...=Spring%20Time
__________________
Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck.
tomatocity 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 07:10 PM.


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