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 > The 1973 - 1991 Blazers, Jimmys, and Suburbans Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-16-2016, 01:40 PM   #1
Ice&burban
Registered User
 
Join Date: Nov 2013
Location: Wrightsville, PA
Posts: 31
Question for those that pulled a leaf

Ok guys, I've got a 1990 suburban. I've drop the front with 2 1/2" drop spindles and 1" coils. The rear I used 73-87 drop spring hangers and drop shackles. I didn't want to do the flip and go that low, as I still use it for family trips. Anyway, I still have a rake to it and need to bring the rear down about an inch or so. I'm going to pull a leaf, but I need to know which leaf spring would work best? If I'm not mistaken, it's 5 main leaves and a helper (sorry, truck is at buddies shop and can't verify). If anyone has experimented at taking different leaves out trying to get their truck level, I could use your help. Which leaves have y'all done and how much drop did it give you?
Attached Images
 
Ice&burban is offline   Reply With Quote
Old 07-16-2016, 09:38 PM   #2
'68 Newtricks
Registered User
 
'68 Newtricks's Avatar
 
Join Date: Feb 2014
Location: Los Angeles area :(
Posts: 499
Re: Question for those that pulled a leaf

Can you get a longer shackle than the one you bought? Or make one or have one made for you. I would do that before screwing with removing leaves, it normally doesn't work out in the long run. If you have no other choice, I would start with #4.

main leaf is #1
bottom leaf is #5
overload leaf
__________________
'68 C10 SWB
'85 K30 Blazer
'68 Newtricks is offline   Reply With Quote
Old 07-17-2016, 08:58 AM   #3
Ice&burban
Registered User
 
Join Date: Nov 2013
Location: Wrightsville, PA
Posts: 31
Re: Question for those that pulled a leaf

I already have longer shackles. I can't go any longer, I'd be into the floor. My thought was the helper spring would give me and inch. I don't tow anything anymore so, I wouldn't run into problems with that.
Ice&burban is offline   Reply With Quote
Old 07-17-2016, 11:40 AM   #4
68Timber
I know the pieces fit
 
68Timber's Avatar
 
Join Date: Nov 2007
Location: MONTGOMERY, AL
Posts: 5,523
Re: Question for those that pulled a leaf

I know a lot of guys do this with good results but I'm not sure which is the best leaf to pull. The overload is probably a safe first choice but I don't know if you'll get much drop from it.
__________________
John

79 2wd Blazer (Bruiser)
85 M1009 Blazer (Sarge) build
74 Honda Z50 build
68Timber is offline   Reply With Quote
Old 07-21-2016, 09:07 AM   #5
Ice&burban
Registered User
 
Join Date: Nov 2013
Location: Wrightsville, PA
Posts: 31
Re: Question for those that pulled a leaf

From research I've done, it looks like the helper will give me 3/4" drop. I think I'll experiment one of these days, just run with a rack for a few weeks. I think I want to keep the helper, just for that added support.
Ice&burban is offline   Reply With Quote
Old 07-24-2016, 03:26 AM   #6
'68 Newtricks
Registered User
 
'68 Newtricks's Avatar
 
Join Date: Feb 2014
Location: Los Angeles area :(
Posts: 499
Re: Question for those that pulled a leaf

pull the overload if you think you'll never use it
__________________
'68 C10 SWB
'85 K30 Blazer
'68 Newtricks is offline   Reply With Quote
Old 07-26-2016, 05:04 PM   #7
Koz1
Registered User
 
Join Date: Aug 2015
Location: USA
Posts: 25
Re: Question for those that pulled a leaf

i Just pulled the overload from my 1991 suburban,dropped rear .770,and it rides exactly the same as before,u just lose the the towing advantage without the overload.
Also reused stock u bolts,and reused center spring bolt,just trimmed off the excess.
re torque u bolts to 140-150 ft. lbs with a good torque wrench,not a HF one.
BTW- you prolly didn't get any extra drop from a front hanger,since burb ones are allready lower than the truck hangers.
Koz1 is offline   Reply With Quote
Old 07-26-2016, 05:32 PM   #8
68Timber
I know the pieces fit
 
68Timber's Avatar
 
Join Date: Nov 2007
Location: MONTGOMERY, AL
Posts: 5,523
Re: Question for those that pulled a leaf

The Pittsburgh torque wrenches at HF are actually pretty good. A Craftsman torque wrench I bought in the late 90's died a little over a year ago and I replaced it with one of these after reading that article. It's worked well.
__________________
John

79 2wd Blazer (Bruiser)
85 M1009 Blazer (Sarge) build
74 Honda Z50 build
68Timber is offline   Reply With Quote
Old 07-26-2016, 06:21 PM   #9
Koz1
Registered User
 
Join Date: Aug 2015
Location: USA
Posts: 25
Re: Question for those that pulled a leaf

yeah up to a point,HF starts getting worse at higher torque values. Yes for the price i carry one in each truck for changing tires ,flat. its pretty close to the Snap on ,at the wheel torque levels,it was within 5-6% ,but at u bolt torque greater difference. i had to set the hf to 155 to snap on 140 on the u bolt torque.
Koz1 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 10:26 AM.


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