I really dislike the factory style brake master cylinder on my 74 Dodge Challenger which always leak when you open them. I found summit was selling one that they said will fit and i really like.
I just thought they were using a stock picture. (http://www.summitracing.com/parts/clp-m-83028/overview/year/1974/make/dodge/model/challenger)
Obviously the 2 hole bolt pattern won't fit. So my question is which Master Cyl. & Brake Booster combo will fit a 74 Challenger.
Can i use the Master that i bought and just change to a different brake booster?
thx

I fought leaks on mine for a while also. I found the wire bail was not bent evenly and putting less pressure on one end. Tweaking the bail fixed it.

If you want to run the newer style master with screw tops, Dr Diff sells an adapter plate for the 4 bolt booster. It may work with the master you have or he'll sell you a compatible new one.

if you buy a brake booster from a 1979 dodge magnum or cordoba, you will find that it uses a 2 bolt master cylinder. not only that its a direct bolt in if you already have power disc brakes.

Thanks and yes i have power disk brakes up front and drum in the rear.
While im on that subject, any compatible cars or setup to convert to disk in the back?
So everything will work and connect perfectly with the Cordoba unit?

Just curious if i use the adapter plate what do i need to do to make up the difference lost in the push rod?

I'm thinking the MP adj pushrod will let you make up that distance. I do know I've seen two different lengths of manual pushrods in my stash (A body apps I would assume since that is all I ever mess with).

I believe Dr Diff has matched up the master and plate to be compatible. You could call him and ask. I would personally go with his matched pair plate + master. It should work fine with a disc/drum setup for normal driving.

On the rear, unlike the front, there is no way to bolt up factory parts to set up discs. There are a number of kits to retrofit. I ran disc/drum for many years until I pushed it hard on a road course and burnt up the drums. A Dr Diff rear disc kit is installed now and no more burning brakes on the track.

Thanks everyone for all your help.
I went with a 1979 Cordoba brake booster.
And i think in the near future i will order the Dr Diff rear brake conversion kit.