Eddie wrote:Cool, then I would do as Dave suggests.
cheers Eddie, I know you do it to the letter mate. between you all its the world of knowledge no doubt and all very appreciated.
Eddie wrote:Cool, then I would do as Dave suggests.
Adrian Worman wrote:So you got 11X3 inch drums out front and 10X2.5 inch at the rear? I'll get onto me parts monkey right now Wayne, this 'll surprise him cos it was him who said they'ed be the same all round
Adrian Worman wrote:The master cyl is attatched to the bulkhead by 4 studs and nuts, or bolts, accessed under the dash mate if I remember rightly
dave-r wrote:Looks like my posts from my mobile last night didn't make it here.
The master cylinder you have there is for a disc brake car. Not drum. However you can still use it as long as either both outlets have residual pressure valves fitted. Or both not fitted. I can't remember which at the moment.
Drum brakes on the standard Challenger measured 10 X 2.5 inches front and rear.
But on the R/T you got 11 X 3 front and 11 X 2.5 rear.
So your car should have 11x2.5" brakes on the rear.
drewcrane wrote:Well you will have to use the brake booster with that new master cyl, due to the way it mounts, he can rob that off of his 72, it will work, but the front res. is larger than the rear for use with disc brakes in the future
dave-r wrote:drewcrane wrote:Well you will have to use the brake booster with that new master cyl, due to the way it mounts, he can rob that off of his 72, it will work, but the front res. is larger than the rear for use with disc brakes in the future
Don't understand that Drew.
Why would he need a booster? In fact the booster mounts completely differently. Higher up on the bulkhead and he would need a bell-crank lever on the brake pedal to operate it.
It will be a straight swap on the existing mounts. But someone needs to look up residual valves and sort that issue out.
Adrian Worman wrote:I just been speaking to a mate at a local parts store, he said the 11" front drums are listed on his parts manual as a "Police spec brake option , to include 10" rear drums". Also says that the master cylinder is the same part number for drum or disc, manual or power assist, not sure if thats quite right so I'm gonna pop in there tomorrow and have a look, its only 20 minutes away.
Keep you posted .