Author Topic: New frame different suspension  (Read 2471 times)

Offline mats1985gmc

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New frame different suspension
« on: May 07, 2016, 03:31:23 am »
Hey guys

Question I have a new short box 2wd frame i need to swap out with my old frame that is twisted. Ive started assembling the rear suspension on the new frame but my old frame was a 52 leaf and the new is 56. I have lowered the truck in the rear with a flip kit in the rear and wanted to keep the old springs but didnt realize the different size. My old leaf is a 52 inch (4/1) I think. Can I duplicate that spring in a 56? am I gonna run into problems or do they even make a 56 with that little leafs? Will i run into problems taking lost of leafs out of a 56? will it affect my flip kit? Thanks

Offline 1967KaiserM715

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  • 1985 GMC K1500 w/ 6.5 TD
Re: New frame different suspension
« Reply #1 on: May 07, 2016, 05:10:16 am »
Just move the front spring mount, grind out all the rivets and then use 7/16 grade 8 bolts. The holes should be there to move it back, I've never had to drill.


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Current Vehicles:1985 GMC K10(Daily) 1991 GMC K2500(Daily) 1975 Beetle(not running) 1985 Mercedes 300D(not running) 1952 M35    1967 M715(not running)
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Offline mats1985gmc

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Re: New frame different suspension
« Reply #2 on: May 07, 2016, 06:42:45 am »
im 90% sure I dont have holes to move them back. I think the frame is a 73-80. Ill double check though that would be awesome if i could just move the mount
« Last Edit: May 07, 2016, 06:47:26 am by mats1985gmc »

Offline LTZ C20

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Re: New frame different suspension
« Reply #3 on: May 07, 2016, 02:00:27 pm »
If you can't move the mount, I believe that there are springs available 4/1 with 56 inch length.
LTZ Cheyenne C20