Re: Motor mount help for 77 crossmember in 66 c10 using 94 clamshell engine mounts
If you use the frame brackets from the '77 C10, you will need a spacer on top of the frame about 1" tall. The C20 and C30 frame brackets fit the early frames much better. Some guys still use a 1/4" spacer on top of the frame.
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