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#1 |
Registered User
![]() Join Date: Dec 2016
Location: Calgary, Alberta
Posts: 5
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Bed replacement fit issue
I am in the process of assembling my 1972 Jimmy replacement bed sides and bed floor. After placing the floor I am noticing the body mount located in front of the gas tank has a gap of 1/4" on each side. I have not tightened up the floor mounts so the gap may improve with tightening. I measured the frame and the frame is straight, I am going to measure the individual mounts tonight. I am going to permanently mount the bedside so I thought I would ask the group if I should consider anything else to correct for the gap in the mount?
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#2 |
Registered User
Join Date: Mar 2015
Location: Ontario Canada
Posts: 1,513
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Re: Bed replacement fit issue
That's normal, and that's what shims are for. The mounts near the front of the box and the cowl are the critical ones, and depending how thick of a shim pack you use will determine your door to A-pillar gap as well as the door to box side gap. It will take a few tries to get it right. For now, put shims in there to take up the gap and tighten it down. Do not just drive a bolt in without those shims or it may bite you later on during final fitment.
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#3 |
Registered User
![]() Join Date: Dec 2016
Location: Calgary, Alberta
Posts: 5
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Re: Bed replacement fit issue
Thank you hemi43. I am cautiously entering unfamiliar territory in this build so appreciate the response. Added shims to the mount last night and will fit the bedsides this weekend and reattach the single wall top hardware.
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#4 |
Registered User
Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,191
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Re: Bed replacement fit issue
100% agree with hemi43. I don't think I have a single body mount that doesn't have some amount of shims installed. It would be ultra-rare if you were able to drop the body on the mounts without shims and have everything line up.
Use thin horseshoe shaped shims to get everything mocked up (large flat washers with a slot cut into them). They can be installed and removed quickly without removing the mount bolts. When you have established the final shim thickness required at each of the mounts, remove the stack of horseshoe shims at each location and replace with permanent shims of the correct thickness, without the slot cut. This will require pulling the mount bolts to install, but the permanent shims will not be able to work themselves out. Last edited by cleszkie; 09-08-2017 at 02:19 PM. |
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#5 | |
BlahBlahBlah
Join Date: Feb 2002
Location: Wa.
Posts: 19,864
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Re: Bed replacement fit issue
Quote:
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#6 |
Registered User
Join Date: May 2008
Location: 204
Posts: 903
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Re: Bed replacement fit issue
Also remember when aligning your doors you may need to add or take away shims to the mounts to get the right gaps
__________________
1969 Chevy Custom Camper 3/4 ton Rust free survivor 1972 Chevy Blazer CST 4x4 Almost Rust free survivor 1972 GMC Jimmy 2wd Undergoing surgery |
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#7 |
Registered User
![]() Join Date: Dec 2016
Location: Calgary, Alberta
Posts: 5
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Re: Bed replacement fit issue
I appreciate everyone sharing your great advice, I am heading to a specialty hardware place today to find washers of various sizes. Once the bed is done I can hang the sides then move onto the cab.
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