View Full Version : What Rear Brake Setup is this??
nuhale
03-22-2021, 05:32 PM
7275 has the 99 PBR fronts but not 100% on these rears. I'm assuming they are the old 1988 thunderbird that came with pre 2015 IRS but they look very similar to same 99"ish" rear Mustang GT.
Anyone know with certainty?
There is some other posts recently so timing is right. Tried some power stops today to see if I had front/rear bias in locking up and couldn't get them to do so AT ALL. I read about pad upgrades but don't know what these calipers are for sure.
https://thefactoryfiveforum.com/attachment.php?attachmentid=144979&d=1616452085
You could take the pads out, go to the parts store and get them to pull mustang/Tbird pads to compare. Might get a a match.
Just went through the same thing. Used the original pads that came with the kit. Lousy stopping power. Then tried some Ford factory pads. No difference. Then I tried Hawk Performance HPS pads. Huge difference.
The front part # is HB274F.610 Rear HB580F.627 The rears are 93 mustang cobra pads. Weird little springs on the top of the pads. The car stops excellent now. Summit has them in stock.
Joecobr
03-22-2021, 06:56 PM
Mine are 1998 Lincoln Mark VIII. Look very similar.
144980
nuhale
03-22-2021, 07:20 PM
Just went through the same thing. Used the original pads that came with the kit. Lousy stopping power. Then tried some Ford factory pads. No difference. Then I tried Hawk Performance HPS pads. Huge difference.
The front part # is HB274F.610 Rear HB580F.627 The rears are 93 mustang cobra pads. Weird little springs on the top of the pads. The car stops excellent now. Summit has them in stock.
Thanks! Those are the exact part numbers I ordered earlier. Going to give that a try before I go the next route of upgrade.
CraigS
03-23-2021, 06:59 AM
HPS are very grippy w/ low noise and low dust. If you find you would like a further improvement in grip try the HPS5.0.
https://www.hawkperformance.com/street
They are a small upgrade in grip. Or go to the HP+ which are a large grip upgrade but dust a lot. I haven't used this 'new and improved' version.
https://www.hawkperformance.com/
I use this which helps a lot w/ dust;
https://www.armorall.com/products/wheels/brake-dust-repellent
I also have a tiny shop vac w/ a brush on the hose end which I dedicate to de-dusting wheels only. When I had similar brakes on my solid axle I ran HPS front and HP+ rear which allowed a more mechanically centered bias adjuster rod.
ggunter
03-23-2021, 07:53 AM
Being thoroughly disgusted with the stock brakes that came on my car I upgraded to the Wilwood brakes. Still waiting for them to be delivered. I can only hope there is a dramatic increase in stopping power between the two systems. If I worked the stock brakes really hard they got better as they heated up. But if I need to say whaoo!! I don't want to wait for them to heat up to stop. Does anyone here have the Wilwood set up and are you happy with it's performance?
nuhale
03-23-2021, 08:01 AM
Being thoroughly disgusted with the stock brakes that came on my car I upgraded to the Wilwood brakes. Still waiting for them to be delivered. I can only hope there is a dramatic increase in stopping power between the two systems. If I worked the stock brakes really hard they got better as they heated up. But if I need to say whaoo!! I don't want to wait for them to heat up to stop. Does anyone here have the Wilwood set up and are you happy with it's performance?
I struggled with this decision early on in my build. I decided to add a hydroboost assist with the brake setup that was already installed on the partial build I bought. Swapping to a wilwood setup will be best by deleting the boost which is possible but will be a total pain with body/paint completed. I spoke with Gordon Levy yesterday and this is what he recommends for best performance so may end up this route if I don't see acceptable improvement with the Hawk pads.
FLPBFoot
03-23-2021, 08:52 AM
Being thoroughly disgusted with the stock brakes that came on my car I upgraded to the Wilwood brakes. Still waiting for them to be delivered. I can only hope there is a dramatic increase in stopping power between the two systems. If I worked the stock brakes really hard they got better as they heated up. But if I need to say whaoo!! I don't want to wait for them to heat up to stop. Does anyone here have the Wilwood set up and are you happy with it's performance?
I have the Wilwood setup and am completely happy with it. All manual and no issue with locking up the brakes. Stops VERY well. I can lock all four up no issue. Really puts you into the harness. Car tracks straight during lock up and marks on the street are straight and true as well. I just need to have my wife be a spotter and check bias as my final adjustment.