Rear Disc Brake Remorse

[mayhem]

I'm currently pulling the Wilwood rear disc brakes in favor of the Dr Diff drum kit for 15" factory steel wheel clearance the Wilwood calipers don't allow.

 

[heminut]

I'm with xcudame on this, the drum brakes work just fine on the rear and the time, expense and labor to change to discs just isn't worth it. I too have spent a lot of time servicing brakes, I worked for 5 year in a dealership doing nothing but front end alignments and brake work.

 

[Brads70]

I've been running DrDiff 10.7 rear discs for at least 10 years now with no issues?

 

[rklein71]

I have a new master cylinder coming in, mine went teats up.

 

[MILOJ]

Not much weight in the backside of a car so you dont need discs

 

[pschlosser]

Not much weight in the backside of a car so you dont need discs

it's also the physics of it. as passenger cars brake, the weight shifts forward, where the rear wheels ability to brake is minimized. even on our Chrysler Pacific mini van, with 4-wheel disc, i have replaced the pads in the front 3-4 times compared to not needed in the rear for going on 13 years, now.

 

[rklein71]

Thanks for the input that I don't need discs, they are already on the car.

 

[pschlosser]

Thanks for the input that I don't need discs, they are already on the car.

roger that. I was responding to MiloJ

 

[Cuda416]

Isn't one of the benefits the tendency to NOT lock up as easily as drums? Obviously you need more foot power or a booster but I think I was told at one point, avoiding locking the rears was a reason.

If not, disregard

 

[pschlosser]

when all factors are weighed in, disc brakes are (overall) considered better and more reliable at braking than drums. disc seems to be superior in terms of cooling (brake fade from heat) and shedding water (water fade) and considered safer, to have four disc, all-around, compared to drums.

the rears will lock up, when the proportioning valve allows too much hydraulic pressure to go to the rears. this applies to both disc and drum.

it isn't wrong to modify these legacy drum systems by adding disc brakes to the rear. but it isn't as simple as bolting things on. correct proportioning valve function is essential to making them operate safely.

 

[MILOJ]

With drum in the rear and discs up front the proportioning valve works to make the stops smooth