Author Topic: Shim core support??  (Read 555 times)

Offline Swampyankee74

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Shim core support??
« on: July 31, 2023, 04:23:53 AM »
I'm looking to shim the passenger side mount of the core support up about an 1/8". truck is on level ground, brand new mounts on cab and core support, and the door is hung properly. Door and fender don't rub. But is very close down bottom with a gap up top. Wondering if anyone has done this and how it has worked for them?

Offline VileZambonie

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Re: Shim core support??
« Reply #1 on: July 31, 2023, 05:04:40 PM »
Yes, but you may need to shim the cab as well. Run at least 3 pieces of masking tape along all of your edges while you make your adjustments.
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Offline Swampyankee74

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Re: Shim core support??
« Reply #2 on: July 31, 2023, 06:55:35 PM »
I gotcha.  I don't need  much. I'm also running an aftermarket fender on that side. Which I hear are very un true. As far as the masking tape goes do you mean to prevent messing up the paint?

Offline hdaniels

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Re: Shim core support??
« Reply #3 on: July 31, 2023, 11:34:56 PM »
I just installed my front fenders. I had to use spacers under the radiator support to get the gaps on the doors correct. Found simpson hardware from Home depot with 1/2" holes and 1 1/2 to 2" square. Worked perfect.
1973 K5 Blazer 4x4

Offline Swampyankee74

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Re: Shim core support??
« Reply #4 on: August 01, 2023, 03:09:59 AM »
Thank you

Offline VileZambonie

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Re: Shim core support??
« Reply #5 on: August 01, 2023, 06:05:24 AM »
Very easy to chip the paint along the edges. Aftermarket is hit or miss but you can rework the fender to achieve the correct gaps and bodylines
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10