73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Brakes, Frame, Steering & Suspension => Topic started by: 06gsxrman1000 on August 05, 2008, 09:56:02 am

Title: 1987 1ton
Post by: 06gsxrman1000 on August 05, 2008, 09:56:02 am

i was wondering if anyone knows the stock size and length of the u bolts for the rear mount

Title: Re: 1987 1ton
Post by: VileZambonie on August 05, 2008, 09:58:32 am

What rear mount are you referring to?

Title: Re: 1987 1ton
Post by: 06gsxrman1000 on August 05, 2008, 10:13:42 am

the bolts that hold the rearend to the springs

Title: Re: 1987 1ton
Post by: frogman68 on August 05, 2008, 10:14:49 am

My 76 uses 5/8 thread by 12 1/2 in square "U" Bolts not sure if they are the same..

Title: Re: 1987 1ton
Post by: 06gsxrman1000 on August 05, 2008, 10:21:03 am

do you know the spread(the distance from center to center)?

Title: Re: 1987 1ton
Post by: ccz145a on August 05, 2008, 10:24:45 am

the length is determined by the spring leaf count.

06gsx,  this is a family-friendly site... might want to change your signature.

Title: Re: 1987 1ton
Post by: frogman68 on August 05, 2008, 10:35:19 am

Mine are 2 1/2 almost 2 9/16 inches just measure the width of the spring..

Title: Re: 1987 1ton
Post by: Cowboy_Customs on September 14, 2008, 11:18:04 am

Just contact a spring shop n get em made. MOST places already know the answer to your question. I just got some made for my truck, all they needed to know were what the truck was, but i made sure I told em how long I wanted them, and the spring width. The actuall bolt diameter for what they made were same as factory. It was 20 bucks a piece, but worth every penny.

Title: Re: 1987 1ton
Post by: 86 chevy silverado on September 14, 2008, 11:51:00 am

Leaf spring width (2 1/2"- 2 9/16") by your actual length needed for your spring pack and plates then add a couple inches for possible future add ons. You can get any size you want/need.
http://www.stengelbros.com/U-boltKitsSquare.htm