No Rear Caliper Dust Boots - OK For Track Day?

[SgdriskillGT]

I’m headed to the track this Sunday and had some work done on my brakes today. My rear caliper dust boots were torn so badly they had to be removed to push the rear pistons in after swapping in new brake pads.

I’m planning to either rebuild the calipers or install new ones, but I don’t have time before the track on Sunday.

Is it too risky to track the car for one day? Or is there really no issue unless there’s been gunk building up over time?

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[Plimmer]

No issue. Mine burn't off many track days ago.

 

[xXANCHORMONXx]

As long as your pads are in good shape. If you have less than 30% pad left I wouldn’t

 

[SgdriskillGT]

As long as your pads are in good shape. If you have less than 30% pad left I wouldn’t

I just put fresh pads on yesterday

 

[SgdriskillGT]

As long as your pads are in good shape. If you have less than 30% pad left I wouldn’t

I’m curious though, why would that change things?

More brake dust from worn pads?

 

[tedj101]

I’m headed to the track this Sunday and had some work done on my brakes today. My rear caliper dust boots were torn so badly they had to be removed to push the rear pistons in after swapping in new brake pads.

I’m planning to either rebuild the calipers or install new ones, but I don’t have time before the track on Sunday.

Is it too risky to track the car for one day? Or is there really no issue unless there’s been gunk building up over time?

Here's some good news and bad news. First, they don't sell rebuild kits for the rear calipers! They don't sell boots either. The boots burn off really fast on the track. Ford told me I had to buy new calipers - but the calipers are cheap. I'm cheaper. Ran for two years with rear boots burned off. No problems at all. Whether this would work on a daily driver, I don't know. You could have a piston freeze, but if you track your car, you will be in there often and keeping things reasonably clean. Should be no problem!

Best,
<TED>

 

[SgdriskillGT]

Here's some good news and bad news. First, they don't sell rebuild kits for the rear calipers! They don't sell boots either. The boots burn off really fast on the track. Ford told me I had to buy new calipers - but the calipers are cheap. I'm cheaper. Ran for two years with rear boots burned off. No problems at all. Whether this would work on a daily driver, I don't know. You could have a piston freeze, but if you track your car, you will be in there often and keeping things reasonably clean. Should be no problem!

Best,
<TED>

This is great news, and exactly what I was hoping! Thank you.

 

[TwinReverb]

I agree with what everyone else has been saying. About the same experience. Changed pads and was a bit surprised to see them cracked. searched and found nothing for a rebuild kit. Only thing I found was OP selling new calipers with upgraded seals. https://www.opmustang.com/store/p238/2015-2017_Mustang_Performance_Pack_Rear_Caliper_Kit.html#/

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