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Old 08-08-2004, 01:43 AM   #11
skid
Registered User
 
Join Date: Dec 2003
Location: Left Coast
Posts: 254
The 3/4 ton brake booster and Corvette master cylinder are in and well, let's just say I can lock all four tires up at 60 mph! I could hardly make the tires squeal at 10 mph before. A definate improvement! Much better pedal feel and modulation as well.

It wasn't quite a bolt in though. I had to extend the front support brace 1 11/16" (welded in a extension) because that is how much wider the 3/4 ton booster is over the 1/2 ton. The plunger rod that came with the 3/4 booster was too short as well. I had some 3/8 drill rod laying around that i measured and cut so that there was maybe 1/4 inch of pedal travel before the master cylinder moved.

The Vette master cylinder is almost identical to the stock m/c. The bore size is the same, and the ports are spaced the same, with just a little offset. I just tightened the lines, and the lines re-adjusted themselves. I loosened the lines on the combination/proportioning valve as well before I tightened the lines on the master cylinder to help them align.

All in all, a definate improvement that just took a little messing around to complete...
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74 Vette

Last edited by skid; 08-08-2004 at 01:46 AM.
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