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73-87 Chevy _ GMC Trucks => Brakes, Frame, Steering & Suspension => The Lows (Lowering/Drops) => Topic started by: old gyal on March 17, 2014, 10:41:33 am

Title: 2 inch drop shackle DJM wont fit my 1986 GMC High Sierra 2WD
Post by: old gyal on March 17, 2014, 10:41:33 am

http://www.summitracing.com/parts/djm-sh1012-2/overview/

 >:(

After spending half of Saturday mounting the above parts from Summit,  I found these DJM shackles jammed the leaf springs right up against the cross support under my truck bed

I would have to cut an access way through the under truck bed support and weld plate/box it for this kit to work

Anyone experienced this problem??  Was I missing something with the install ??

Its not a straightforward install as the product info states - no matter which way I turn their shackles

I thought maybe the spring needed to settle  :-[  so I put the truck on the ground and rolled down the driveway

The bed support still sits on the spring eye and it literally rattled my teeth

The stock shackle has an arc / angled mounting ears leading to the spring leaf eye that keeps the spring positioned in front of the bed cross support

The supposed replacement DJM shackle is basically straight  and cannot work

What can I do to still get my simple 2 inch drop in the rear - to give the truck a flatter look



 

Title: Re: 2 inch drop shackle DJM wont fit my 1986 GMC High Sierra 2WD
Post by: Captkaos on March 17, 2014, 03:50:39 pm

I am assuming short wheelbase and/or HD springs. 
If so this is normal.

Chris Lucas
73-87chevytrucks.com
captkaoscustoms.com
squarebody.biz

Title: Re: 2 inch drop shackle DJM wont fit my 1986 GMC High Sierra 2WD
Post by: old gyal on March 18, 2014, 01:22:26 pm

 :( really ??   WOW

yes it is a short wheelbase - not sure if it is heavy duty spring

They should have at least said something like that in their instructions

I have a pair of original longer style shackles from a 80 4x4 Blazer -  that look like they are a fit - and seem to be about the same 2 inch drop
and may allow the leaf to operate without binding

If I put these on my truck - and use the DJM shackles - will this amount to 2+2 inch drop - i.e. too much drop for a rear drop only

If so, should I reuse the stock shackles instead ??

Title: Re: 2 inch drop shackle DJM wont fit my 1986 GMC High Sierra 2WD
Post by: sbx22 on March 21, 2014, 10:30:36 am

I bought the 2" drop shackles as well, had to use an angle grinder and cut away at that bed cross member or whatever you call it. Either weld or paint over that bare metal to prevent any rust corrosion and you're good!

Title: Re: 2 inch drop shackle DJM wont fit my 1986 GMC High Sierra 2WD
Post by: Captkaos on March 24, 2014, 09:56:23 pm

If you have a short bed and std 3 leaf springs the longer shackles WILL hit.