Author Topic: Cab mount brackets  (Read 5330 times)

Offline bman61490

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Cab mount brackets
« on: May 02, 2017, 04:10:30 AM »
Bringing a 77 C10 2wd back to life and need some advise.

The cab mount frame brackets are extremely worn out. I've found a set on ebay and i'm wondering if cutting out the rivets, punching them trough the frame then bolting a new set of brackets on is easier than fabricating something to weld on top of the bracket. I would use high strength bolts and locking nuts and weld the seams for extra safety.

Has any one removed or replaced these things before? or do you know of an easy fix without getting into any crazy fabrication? (i don't have many fabrication tools)

Any info helps, Thanks!!

Offline 1967KaiserM715

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  • 1985 GMC K1500 w/ 6.5 TD
Re: Cab mount brackets
« Reply #1 on: May 02, 2017, 04:45:25 AM »
Just use grade 8 and locking hardware. 7/16 bolts fit the best through rivet holes-very rarely do you need to run a drill through for the bolt to fit.


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Current Vehicles:1985 GMC K10(Daily) 1991 GMC K2500(Daily) 1975 Beetle(not running) 1985 Mercedes 300D(not running) 1952 M35    1967 M715(not running)
 1986 Chevy K30(under repair)

Offline Engineer

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Re: Cab mount brackets
« Reply #2 on: May 02, 2017, 09:19:39 PM »
Do as you say, drill the old rivets and replace the frame mounts with OE GM cut offs.

Fabricating new ones would be more work in the long run.
2002 Chevy 2500HD 4x4 8.1/ZF6sp RC/LB
2001 Chevy 2500HD 4x4 6.0/4L85E EC/SB
1997 Chevy Blazer 4x4
1994 Chevy K-2500 4x4 C6P 5.7/4L80E
1979 Chevy K-30 4x4 4sp 4.10
1977 Chevy K-30 4x4 4sp 4.10 454

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