Thread: F-Body brake question

Originally Posted by asite57

whered you get thoses and how much did they set you back?

got the whole set with the brake pads for 350 shipped from a member here. 20,000 miles old. his car got crashed. the pads were still tight on the rotors with the caliper open all the way.


looks like this now behind the sts caddy wheels i picked up.

very nice and good deal

thanks.

i still need to put the rear ss lines on and paint the rears to match. they are a real mess and a wire brush wont cut it, maybe a wire wheel on a drill may do a nice clean up. thats for the near future though.

yeah i need to paint my calipers as well this up grade is an end of summer thing

Originally Posted by mechguy

Too bad they are cast iron.

In reference to 06+ Impala calipers.

Still better than stock.

The 06+impala/monte are a little thinner compared to the F-body.
But you wont lose the pedal feel like you do with the F-body.

Originally Posted by matt5112

The rotors are yes.

But the calipers have the same size pots.

Pedal feel should be exactly the same unless F bodies flex that much under load.

More of pedal travel than feel. But F-body feel like they don't work as well as stock because the initial bite is not as hard.

I have both. F-bodys on the GTP with GXP rears
and 06 06+impala/monte on the Regal with GXP rears also.

There's a lot more pedal travel with the F-body, but when they do bite. They bite hard.

Originally Posted by matt5112

That doesnt sound like caliper issues. Sounds like pad differences.

Because they should apply precisely the same pressure for a given pedal distance.

Its common on clubgp for years because of the dual pistons and there size compared to the singe piston.

ClubGP Message Forum troubleshooting

I realize many have talked about changing the pedal to correct the travel/feel issues. Personally my only experience is with my car and I don't notice any feel/travel problems.

But then I redid the SS lines with Goodridge after being advised that the ZZP lines vs the Goodridge could make that difference. I also bled very thoroughly with synthetic fluid and a power bleeder. Fluid can have a huge difference on brake feel etc.

For the $60 (calipers, bolts and brackets with bolts) shipped to my door off Car-part.com, then $120ish for rotors and pads from R1 Concepts. Then the goodridge lines from PYFC ~$100. I am one of the happiest brakers in the area.

If I were to do it again, I'd go with their standard eline rotors, not drilled/slotted.

Originally Posted by matt5112

Both the f body and the 06+ imp calipers are the same size.

So how does it apply to one but not the other?

True, they. Maybe it has to do with the aluminum caliper.
But I have both and there is a very noticeable difference. Thats why I will be putting C5/C6s on the GTP soon.

Originally Posted by BillBoost37

I realize many have talked about changing the pedal to correct the travel/feel issues. Personally my only experience is with my car and I don't notice any feel/travel problems.

But then I redid the SS lines with Goodridge after being advised that the ZZP lines vs the Goodridge could make that difference. I also bled very thoroughly with synthetic fluid and a power bleeder. Fluid can have a huge difference on brake feel etc.

For the $60 (calipers, bolts and brackets with bolts) shipped to my door off Car-part.com, then $120ish for rotors and pads from R1 Concepts. Then the goodridge lines from PYFC ~$100. I am one of the happiest brakers in the area.

If I were to do it again, I'd go with their standard eline rotors, not drilled/slotted.

why not slotted and drilled rotors?

The only advantage I've found is that they give a cool RRRRRRRRRRRRRRRRRRrrrrrrrrrrrrrrrrrrrrrrrrrr sound when stopping from highway speeds. Otherwise, they haven't done anything to suggest the extra cost or attention that they get was worthwhile. Also a note, that I have 40K miles on them at this point and there are very very small spider cracks eminating from the holes. Aka ..they are starting to crack. At 40K with the abuse I've given them, I'm pleased with their performance. There is simply no justification for the drill holes though.

sleeves are eaiser

So the hole in the bracket is larger than our stock bracket? Is that what the sleeve is for? So u can still run stock bolts? I honestly am trying to picture this without looking at the brakes. I have 1 set of each, f body , 06 impala and just a 12" rotor bracket.

the caliper bracket bolts are thinner for the f body caliper, vs the stock w body bracket bolts.

so you need the sleeve to take up the space, ( sleeve goes in the knuckle) or drill and tap the f body bracket to use the stock w body caliper bolts.

Ah I see. So what if I use the c5 caliper ? What bracket would I need ? The fbodys ?
Again, lol I have all of these but just been running a stock caliper with 12 rotors