OK, I have a 2003 2500HD 4x4 regular cab pickup and I'm thinking about
getting new rotors all the way around before winter. I have the 6.0L
gas engine if that helps.
The thing that's got me stumped is that the parts places ask me if I
have the 2" body lift. I don't think I do, but how the hell do I
know? The thing looks jacked to me, but that's not exactly a
I see that the rear rotors have two different size center holes, 4.63"
and 4.84". I haven't taken anything apart yet, so I haven't measured.
I was hoping to have an easy answer so I don't have to dissasemble,
measure, then reassemble to go to town and pick up what I need.
Any help....I appreciate!
have your vin in hand and call your local dealer. they will tell you what u
have. even if you do not intend to buy the parts from your dealer and want
to go to the corner parts store remind them that you bought a vehicle from
them and if they want to sell you another in the future to cough up the info
I managed to find a reference from an online forum that said trucks
that have the Allison tranny have a 2 inch body lift to accomidate the
size difference. Now, why the hell that would have anything to do
with the brakes is beyond me, but at over $125 a rotor, I don't want
to be buying the wrong ones and finding out after it's torn apart in
BTW, Ian, I think the rear calipers are hanging up on the sliders.
Could I remove one slider at a time, lube it up with the special brake
silicone lube stuff and insert it back in? I'd prefer to just do that
than remove the tire, both sliders and all that.
Is that a valid short cut or am I going to screw myself somehow?
I think that you will find you have to remove caliper
and bracket as a unit. It's actually as important to
remove the rear brake pads and the insert/shims that
they ride on and clean up the surface under the shims
and clean the shims themselves. If you get GM pads,
you get new shims with the pads. When corrosion
builds up under the shims, it raises the shims and stops
the pads from moving freely. Sometimes, this is what
contributes to premature wear (99 percent of the time
it's the right inner pad that wears out) of the rear brake
pads. Obviously, you still want to lube the sliders
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