I know that a explorer axle is a pretty easy swap. But I was wondering about ford racings rear disk brake conversion kit. I know that it only fits the 31 spline axle. I have a 03 edge, I assume it has 28 spline axles. So if I wanted to get new 31 spline axles/carrier/diff and put it in the rear of my edge I could then get the frpp kit and it should bolt on? or would it be easier to get a exploder axle and rebuilt it/clean it up. Thanks for all the info!!!

 

That seems like a really expensive way to get Disk Brakes as that 31 Spline Axle will probably run you around $250-$400 from what I've seen and then the Ford Racing kit $350.

The exploder axle will obviously be the cheapest as you can probably find one for under $150 bucks. It will be slightly wider then your Ranger Axle, but not a big deal as I think the rest of the install is pretty much bolt in. It's been awhile since I've looked over that swap though so do some research before taking my word.

The next best option is probably to simply swap disks onto your stock 8.8 axle. There are a couple threads out there from people who have done it (rwenzing is the first to pop into my head). Also, I believe you can simply cannibalize a SN95 Mustang 8.8 Axle and get parts that way. Finally, you can also just buy a kit from these guys:

REAR DISC BRAKES

which should get your stock 8.8 axle running with Disks. It's all about how much money you want to spend and how much you want to do yourself.

 

I don't think you can just put the 31 spline axle shafts in a 28 spline axle. The axle tubes are different sizes.

 

You'd be better off just swapping axles IMO. For the price of the disc brake kit you could buy a good condition Expo axle (that has discs and is a stronger unit).

 

That is correct. I missed that part.

 

Thanks for the fast replies everyone! Im actually a mustang guy (my screen name) But ive been slowly getting into the ranger thing since my GF bought her Edge. I know with stangs you can just swap axles/diff over to 31 spline in the same 8.8 housing. But it could be different on rangers. I didnt know expo. axles where that cheap I was think like $500 or more, but thats good news. And it just so happens that my 95 GT is broken right now, so your saying I could bolt on my rear brake parts? Ive have been thinking about trying, but I didnt know if it was possible or not.

 

I've heard people say you can. As for actually seeing a build where a SN95 disk setup was swapped onto a 8.8 Ranger Axle. I don't think I've ever seen it. Maybe RPS has build threads. Not sure.

 

Ive been meaning to look into it more and pull the wheels off the vehicle and get a good look. I hope so, otherwise I guess I could just get a expo axle. Is it better to get one from a junkyard or a forum?

 

I bought my explorer axle for $300 that came with 4.10's and a l/s. I spend another $600 on it for new axle shafts, since the driver side was bent and new disc brake calipers, houses, brake pads, rotors, bearings, not to mention new leaf spring mounts and shock mounts and paid some one to weld the new shock mounts and leaf spring perches. Keep this in mind when looking for a Used expo axle:

1. Check the gear ratio 4.10's and l/s are better then just a regular 3.73

2. Open the diff cover to check all the internals and make sure nothing is missing and nothing is broken, cracked or damaged.

3. Make sure the shafts move freely and nothing jams up. Replace any or all the bearings and seals if you have too.

Hope this helps.

 

I put 12inch COBRA rear vented disc brakes on my stock ranger 28spline 8.8. Its an easy swap if you have a grinder or bandsaw to modify the caliper axle brackets....then it bolts on.

Here is from my build thread. You'd probably find it if you searched....

 

Sorry for not searching, Ive been trying to get as much info on alot of the mods I want to eventually do. Ive been looking on Rstation,RPS,GenEdge and now here. I cant remember where/or what i searched for. But thankyou to everyone, all of you have been very helpful, and I very glad I found this site! I like it the most.