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 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-31-2013, 08:42 AM   #1
gramps77
Registered User
 
Join Date: Oct 2011
Location: Plumas Lake, CA
Posts: 386
lowering longbed

How should I lower my 77 longbed WITHOUT having to swap out the driveshaft to a one piece? I dont want to dump the truck. In fact, Id be happy with a 2" drop all around. although 2 up front and 3 in the rear would be even better
gramps77 is offline   Reply With Quote
Old 01-31-2013, 11:16 AM   #2
northeimcustom
Registered User
 
northeimcustom's Avatar
 
Join Date: Feb 2007
Location: WISCONSIN
Posts: 291
Re: lowering longbed

Flip kit and spindles and coils
northeimcustom is offline   Reply With Quote
Old 01-31-2013, 12:31 PM   #3
gramps77
Registered User
 
Join Date: Oct 2011
Location: Plumas Lake, CA
Posts: 386
Re: lowering longbed

That would result in a 5/6 drop wouldnt it?
I guess my question is more how to do a 2/3 and if that would still require going to a one piece driveshaft as I have read.
Is going to hangars and only using the first 1" drop hole going to be beyond not having to swap the driveshaft?
I'm already assuming spindles for the front but not sure if there is much difference between bell tech, DJM, CPP etc.......by the way its also the heavy half ton with larger brakes and more leafs

Last edited by gramps77; 01-31-2013 at 12:39 PM.
gramps77 is offline   Reply With Quote
Old 01-31-2013, 01:08 PM   #4
Ziegelsteinfaust
Registered User
 
Join Date: Dec 2012
Location: Temple City
Posts: 3,628
Re: lowering longbed

Lowering springs front, or spindles.

Shackle in the rear for 2".

For 3" I think you need to flip the rear, and use a lift shackle.
Ziegelsteinfaust is offline   Reply With Quote
Old 01-31-2013, 01:14 PM   #5
Ziegelsteinfaust
Registered User
 
Join Date: Dec 2012
Location: Temple City
Posts: 3,628
Re: lowering longbed

On a 3" drop I don't think you'd need to do much to your DS.

I have a C20 long bed, and even if I dropped my rear down 8" All I would have to do is drill new holes to move my carrier bearing back 1 inch. I have plenty of room on my youke for that for some reason.
Ziegelsteinfaust is offline   Reply With Quote
Old 02-01-2013, 08:45 AM   #6
Square_78
Registered User
 
Square_78's Avatar
 
Join Date: Mar 2012
Location: Okanagan Valley, BC, Canada
Posts: 1,237
Re: lowering longbed

Theres no need to swap your driveshaft no matter how much you lower it. Flip kit will lower it 6"+. Mine came down 8" in the back with a flip kit and 4 degree shims, but I also went from 3/4 ton leafs to 1/2 ton leafs. Mine is borderline needing the carrier bearing raised up. When i notch the frame and bag it, I will have to do the carrier as well.
__________________
#teamlongbed

"I refuse to go disc brakes. I actually love drum brakes. It makes for an adventure." - 50bomb

1978 Chevy shop truck - static 6/8"
1970 GMC 1500 - Accuair eLevel Resto-mod http://67-72chevytrucks.com/vboard/s...d.php?t=537497
Square_78 is offline   Reply With Quote
Old 02-01-2013, 10:10 AM   #7
Keith Seymore
Registered User
 
Keith Seymore's Avatar
 
Join Date: May 2009
Location: Motor City
Posts: 9,226
Re: lowering longbed

Quote:
Originally Posted by Square_78 View Post
Theres no need to swap your driveshaft no matter how much you lower it.
Agree.

I'd cut the coils in the front and relocated the spring hangers on the rear.

K

















__________________
Chevrolet Flint Assembly
1979-1986
GM Full Size Truck Engineering
1986 - 2019
Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926
My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524
Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/
Keith Seymore is offline   Reply With Quote
Old 02-01-2013, 05:52 PM   #8
gramps77
Registered User
 
Join Date: Oct 2011
Location: Plumas Lake, CA
Posts: 386
Re: lowering longbed

Quote:
Originally Posted by Square_78 View Post
Theres no need to swap your driveshaft no matter how much you lower it. Flip kit will lower it 6"+. Mine came down 8" in the back with a flip kit and 4 degree shims, but I also went from 3/4 ton leafs to 1/2 ton leafs. Mine is borderline needing the carrier bearing raised up. When i notch the frame and bag it, I will have to do the carrier as well.
hmmm, why do I remember reading somewhere that once you went lower than a shackle drop it was advisable to change over to a one piece? Alrighty then, I guess I can proceed without to much worry then. Got some Bell Tech shackles to try on first. See where the level look leaves me and go on from there, Thanks guys
gramps77 is offline   Reply With Quote
Old 02-01-2013, 07:16 PM   #9
cory d
Registered User
 
cory d's Avatar
 
Join Date: Dec 2011
Location: Arlington WA
Posts: 1,728
Re: lowering longbed

im dropped like 8+ in the rear with a 2 peice. you just have to modify the carrier bearing hanger. i would just chop a coil in the front. drop shackle in the back and remove 1 or 2 of the shorter leafs
cory d is offline   Reply With Quote
Old 02-03-2013, 05:15 AM   #10
wraprail
Registered User
 
wraprail's Avatar
 
Join Date: Sep 2010
Location: Lake Havasu City Arizona
Posts: 863
Re: lowering longbed

It's just a bad idea...Don't do it...
wraprail is offline   Reply With Quote
Old 02-03-2013, 09:25 AM   #11
rs72z
Registered User
 
rs72z's Avatar
 
Join Date: Oct 2011
Location: Emory TX
Posts: 900
Re: lowering longbed

Quote:
Originally Posted by wraprail View Post
It's just a bad idea...Don't do it...
What's a bad idea? Lowering?

I lowered my dually 5/7 and stayed with the two piece shaft, no problems.
__________________
___________________

78 ccsb dually
5.3
4l60e
http://67-72chevytrucks.com/vboard/s...d.php?t=491551
rs72z is offline   Reply With Quote
Old 02-03-2013, 10:00 AM   #12
bigd65
Registered User
 
bigd65's Avatar
 
Join Date: Mar 2000
Location: Clute, TX.
Posts: 1,935
Re: lowering longbed

I put the drop shackles on the rear of my LWB and one day WHEN I HAVE THE TIME, I'm going to cut a coil from the front. Might just buy the lowering springs though
Posted via Mobile Device
__________________
2004 Silverado Crewcab
1972 Chevy Monte Carlo
2017 Chevy Tahoe
bigd65 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 09:14 AM.


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