Wilwood brakes

[CompOrangeSN95]

Couldn't find anything I was looking for on google so I figured I would ask the forum. I'm curious what would prevent this kit http://www.summitracing.com/parts/WIL-140-9221/ from fitting on an sn95 8.8. Is the caliper location the only issue? Or is there something that I'm missing? This is for a future build and will not be going on the track bitch. Thanks in advanced.

 

[94GTstanger]

Well it says its a special order item so they will prob make it to fit your ride personally...they should for 1500$...lol

 

[CompOrangeSN95]

haha yeah I completely agree, what gets me is I can't seem to find anything on the web comparing the SN95 live axle to the S197 live axle, I mean it's obvious that they have different mounts on them, but what else is different?

 

[ReplicaR]

It's not the fitment issue. I've seen plenty of Wilwood kits for the rear of the SN95. The issue is that 8.8 is a C-clip rear end. What this means is that axles are held in place by c-clips, and have a little side to side play. This play will move the pads, creating something called pad kickback. If you ever experienced it, you would know that first good step on the brakes would be hollow all the way to the floor. giving you no stopping power until you have some pressure in lines again, kinda like when you just compressed pistons for pad change.

What can you do about it?

1. Run with stock rear brakes. Upgrade to Cobra larger rotor kit (it's super cheap), get an aggressive pad to match the front kit, and you'll be all set. The whole reason why Ford used the stupid screw in caliper, is to directly deal with the downside of the c-clip rear end.

2. Get a c-clip eliminator kit. These kits convert your rear end to a 9 inch style axle tube, where the axle shafts are held in place by bearings at the ends of the axle housing. No play at all. Those kits usually run upwards to 500 dollars, for which you get all new brackets, new axle shafts with bearing, and and a few more things to make it all possibly. I've been contemplating on doing this myself, since one of my axle shafts is bent slightly.

 

[CompOrangeSN95]

Thanks for the info man, I have heard about the c-clips being an issue (running the sock rear calipers I never had any problems) but know of a few people that actually run the axles under tension on the c-clips, eliminating the side to side movement. That always made me weary because I've seen them snap before on 4x4's under load and the stresses on the track are just as hard if not harder. Although it's funny watching an axle walk out of the tube while crawling on a trail, it's not something I want happening to me on the track. I'll have to look into getting a c-clip eliminator, my next project is going to be a big under taking and I plan on doing everything right the first time around (not likely) even if it means I have to save a little more cash.

 

[CompOrangeSN95]

The c-clip eliminators are not as bad as you had though, based on what I could find. These are for Fox length axles, which I'll be switching to anyway, it's made by Moser so you know it's quality. http://www.summitracing.com/parts/MSR-9300/

 

[ReplicaR]

I found full Strange Engineering kit, which included new axles and all the hardware, plus the ABS rings, which you can not reuse from stock axles for some reason. Pricy as fuck, but I have to change axle shafts regardless, so might as well.

 

[rz5.0]

Y not just use the cobra r kit. There is also a kit that lets you use gt500 brakes on a sn95.

 

[ReplicaR]

He already has GT500 front kit. He's looking for the rear.

 

[LilRoush]

There is a Baer 13" rear kit that sells fairly cheap. I run 13" Baer rears on my V6 and LOVE them.

 

[ReplicaR]

13 inch rotors in the back are a bit of an overkill, in my opinion if you are still using a stock caliper. You are not inceasing the brake pad size, so you are not increasing the sweep area. You can put more torque on the pad due to it being further away from the axle (leverage), but at the same time you seriously increase the rotating mass (slower acceleration). Honestly, a good race pad, and a vented cobra rotor is all you really need. Front brakes do most of the work anyway.

 

[rz5.0]

Bear reuses the same caliper right?

 

[CompOrangeSN95]

Thanks for the input guys. The GT500 brakes on the front are over kill to begin with, the car really stops (especially with the R1's) I really don't need to upgrade the backs. The sn95 is purely for learning purposes without the worry of damaging something that doesn't belong to me. I'm looking into building a new car that will use a bunch of parts from the sn95, including the rear axle, and this kit would be going on that. It is a big under taking and won't be happening until I buy a house, but the more research I do now, the more I know, and the less I have to do later. Thanks again :thumbsup: