Motor mount Q

[k5kev]

I'm getting ready to drop a new motor on a bare '72 4x4 frame, with original engine crossmember. It appears to me that the motor mount holes in the crossmember are about twice as big as the motor mount bolts???? Is there supposed to be some kind of bushing/shim/whatever to fill in the gap??? Or did GM design it that way and I just use a big ole washer so I can tighten the mounts down???

Thanks in advance for the replies, I don't want to screw this up!

 

[garlicbreath]

I was wondering the same thing. When I pulled my motor 4 years ago it had huge honking washers on the bolts in the crossmember. They might have made the holes oversize for adjustability. Tolerances probably sucked 30+ years ago.

 

[RGV72BLAZER]

get some tips from burt4x4 or greg72

 

[Burt4x4]

I can't recall what was there but I know what holes you speak of.
I removed my old x-member and installed 73+ version...so I can't remember what was holding the old engine mounts to the original x-member...that was like two years ago..
Good luck
Burt

 

[Beast388]

Yes, there is a big washer that is about 1/4" thick that is used on those bolts. It reminds me of a crank balancer bolt, just smaller outside diameter. If you need a measurement or anything, let me know.....I'll measure mine.