broncosbybart
Bronco Guru
- Joined
- Mar 13, 2002
- Messages
- 2,644
First off- I recommend this for something other than your pristine mall crawler.
A fair amount of fab work is needed.
I used a set of 4 door 91' Sidekick rotors. They are vented (unlike the 2 door ones) and are 5x5.5. They fit right over the 9" axle shafts and there is no need for grinding or fooling with lug studs. I did plasma a semi-circle in each to allow for access to the retainer plate nuts.
I used a set of $10 Speedway Motors weld on caliper mounts and the big (non-metric) GM calipers. I did have to weld a 1/4" thick 'shim' on the piston side of the one pad in order to make the big caliper work with the thinner rotor. I didn't want the piston extending too far. In all, I did it for under $100 with a cheat code on the Advance Auto site and some already had stainless flex hoses. Works great! I am using a cutting brake on the rig as well and it really likes these discs over the stock drums!
A fair amount of fab work is needed.
I used a set of 4 door 91' Sidekick rotors. They are vented (unlike the 2 door ones) and are 5x5.5. They fit right over the 9" axle shafts and there is no need for grinding or fooling with lug studs. I did plasma a semi-circle in each to allow for access to the retainer plate nuts.
I used a set of $10 Speedway Motors weld on caliper mounts and the big (non-metric) GM calipers. I did have to weld a 1/4" thick 'shim' on the piston side of the one pad in order to make the big caliper work with the thinner rotor. I didn't want the piston extending too far. In all, I did it for under $100 with a cheat code on the Advance Auto site and some already had stainless flex hoses. Works great! I am using a cutting brake on the rig as well and it really likes these discs over the stock drums!
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Rear Discs 001.JPG68 KB · Views: 139
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Rear Discs 008.JPG68.6 KB · Views: 133
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Rear Discs 009.JPG78.2 KB · Views: 134
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Rear Discs 010.JPG63.1 KB · Views: 137
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Rear Discs 011.JPG66.6 KB · Views: 140
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Rear Discs 012.JPG66.2 KB · Views: 138
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Valve covers 014.JPG72.1 KB · Views: 157
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Rear Discs 014.JPG68.7 KB · Views: 150
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Rear Discs 016.JPG73.9 KB · Views: 164
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Rear Discs 017.JPG78.4 KB · Views: 160