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best I can tell by measuring bolt spread is the brackets are exactly the same. The 87 on the left and 1037 on the right. I found a 1036 finally, locally, and it too seems to be the same with slightly shorter pushrod but still too long for the 87 booster by about 1/8 inch.

if anyone is interested, ive been doing some research. Someone had mentioned a GM 178-1036. it led me down the rabbit hole of searching. was able to find a 178-1037, which durmax folks say is the "new' version of the 1036, and about 30 bucks cheaper. I have a few pics compared to the stock...

gotcha. I have done something similar except I tapped the pushrod and used a heim. It all depends on what kinda brake pedal setup you are trying to attach to I guess. When moving from 94 bronco (which needed the formed "flat" style mount that fit into the brake pedal switch) to the scout that...

when you say input shaft, are you talking the length of the pushrod between MC and HB? Ive got a welder, just cant imagine what its needed for. Now ive got to go look up the rebuild vids......

lol. Im pretty competent at building off road cars. built my current off road car from the frame up. Replacing a hydroboost unit should not be a common thing, unless you use a reman unit like cardone or one of the other shit rebuilders that are out there. My current HB unit in my car was...

cleaned it up really well yesterday. It appears it is leaking from between the two halves of the HB unit, and best I can tell from where the master mounts to it (just had hip surgery, so there is only so much I can do right now). At this point, Id rather replace the whole unit than the repair...

the HB unit is wet all over, and dripping fluid along the firewall. All hoses are wet as well. yes the PS reservoir was low. I think its seeping from the round metal dohickey (i forget what that cylinder is called) on inboard side of booster. Braking performance is normal for now, and pedal...

the booster on my kids 87 k5 is leaking from somewhere I cant find. I figure its only time before it fails completely. The only replacements I can find are reman'd units from Cardone, which Im not crazy about. Rather run something "new" Im guessing a chevy HB unit crosses over from rig to...

duramax filter question- has anyone looked at pulling the pressed in 1/2" tube fittings out and drilling/tapping to run pipe thread fittings to convert to AN style male plugs? Am I over thinking this?

Im really torn with which setup to go with. In california, so the fuel heater isnt super important to me. the duramax one is like 100 dollars for a dorman part the gf647, if you can find one, is also about 100 bucks this RACOR knock off is pretty cheap but questionable...