Does anybody know if GM uses standard bolt patterns on their brake boosters? Let me explain, GM made a hydraulic brake booster for the 03-06 V8 utility vehicles and I'm wondering if the bolt patterns are the same between our J's and those. Maybe? Maybe? I know it's not impossible to modify the flange to fit the J's bolt pattern (if it's different) but just wondering if, just once time, it could be easy.


"Never argue with an idiot. They'll drag you down to their level, then beat you with experience!" -Anonymous

I believe people have done a hydro-assist converstion before.

But yes, that is why you can also buy larger bore MC's from places like SSBC and wilwood.....because we share the same pattern as their "SBC" models.

I do not know if the ones you are asking about also share that bolt pattern, but I believe they do.