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Old 03-30-2017, 12:13 AM   #1
Captainfab
60-66 Nut

 
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,254
Re: 66 gmc ls swap...need help!

If you are set on keeping those engine mount brackets, unbolt them from the frame and crossmember. Then bolt the brackets, engine mounts and clamshells to your engine. Set the engine in place where you want it and mark the bolt holes on the crossmember and measure how thick of a spacer you need on top of the frame. You may need to trim the top flange of the frame back a little to duplicate the '73-'87 frames.
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Old 03-30-2017, 07:16 AM   #2
Slammed96
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Join Date: Apr 2013
Location: Olathe KS
Posts: 157
Re: 66 gmc ls swap...need help!

Quote:
Originally Posted by Captainfab View Post
If you are set on keeping those engine mount brackets, unbolt them from the frame and crossmember. Then bolt the brackets, engine mounts and clamshells to your engine. Set the engine in place where you want it and mark the bolt holes on the crossmember and measure how thick of a spacer you need on top of the frame. You may need to trim the top flange of the frame back a little to duplicate the '73-'87 frames.
I may give that a try. It's not that I'm dead set on keeping the mounts that are in the truck, more just trying to keep things as budget friendly as possible.
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