CZSteve

What's the minimum thickness for 2wd rotors in order to be turned?

Mine are warped and I want to check this weekend when I rotate my tires before messing with pulling them and taking to the auto parts store.
Vehicle is a 98 2wd 2500 QC.

I'm hoping to be able to turn them in order to keep cost down but if I need to buy new rotors... recommendations?

Thanks,
Steve

KATOOM

This should help: http://dodgeram.org/tech/specs/brakespecs.htm

infidel

Turning warped rotors is a waste of time and money, the warp will come right back. Just buy new ones.
I like the high quality Brembo rotors www.tirerack.com sells

KATOOM

Very good point to be made. Warped rotors will always come back because the structural makeup of the metal has been compromised. And if you buy from a local parts store then its even still a good idea to have them turned just to be sure that they're true.

Silver R/T

I had rotors turned on my daily driver (pedal was pulsating) and it brakes fine now, that's been years ago.

cbrahs

to answer the OP question

2500 4X2 32.24 mm (1.2693 in)


for gee wiz measurements for the rear drums.

Nominal Diameter 13.00"
Maximum Machine Limit 13.060"
Discard Diameter 13.090"
Runout Limit 0.008"

mechrisme

it says on the inside of the rotors

KATOOM

That would depend on if the rotors were simply out of "true" or actually warped. I've turned rotors that were out of true but any rotors that were warped always had the warping return in time. Warping happens because of hard/long braking and then parking the vehicle (or staying stopped for extended periods) before the rotors have a chance to cool off which will cause the rotors to get hot spots. The hot spots are a change in the metallurgy of the rotor, whereby creating "hard" spots. Then as the brakes are used, the soft area of the rotor wears faster than the hard spots which causes warping. Why the warp returns is because even though you smoothed it out by turning the surface, there is still hard spots deep in the metal which will wear slower than the softer rotor area.

Silver R/T

In my case I think it was water that got on rotors and brake pedal would pulsate