OK, I know this is not F150 related, well sorta.. I need to know which Ford or other Auto makes a rear rotor that has a bolt pattern of 5 on 5.5 and a hat of 7" ID.
I have a Ford 9" housing with Ford 31 Spline Axles that are 5 on 5.5 Bolt Pattern. I need Disks for it and I was told that late model Explorer had 5 on 5.5 but I can not verify this.

Anyone KNOW WHERE I CAN GET A SET OF ROTORS?

 

I've seen late model explorer 8.8's with rear discs on Ebay for sale. I haven't noticed any rotors only, but I think explorer uses a smaller bolt pattern????? I'd check your local parts store for the explorer's and measure them. I believe dodge has the 5 on 5.5 on the previous body style, but I don't know about the new body style. I don't even know if any of them use discs. Have you looked at using rotors just like the fronts? It might be a little over kill but then you could upgrade your fronts and stop on a dime

 

These rotors are for my Nostalgia Funny Car I am building. I just need a set of rotors for the rear. I did buy a rotor from an 80 Dodge W100 4x4 that had the 5 on 5.5 but the center of the hat was 6.00" and the hub on the Ford axles is 7.00", right pattern, wrong hat size.

Second option is to buy the Ford Lincoln rear disks and send them off to Moser Engeering and have them filled and redrilled.. OUCH on the price.... Wilwood does not make a "standard" 5 on 5.5 hat, and if they did the rotor thickness is WAY to thin to use on my application, I am using the Wilwood GM II calipers and having a .38" thick rotor would be almost like not having any rotor at all.

Justin

 

Why couldnt you use ones off the front rotor off a Ford truck, van, towncar etc? Is the hat to small as well?

 

No, had to use 88 GM K1500 4x4 Fronts that are the 6 lug and I'll weld the holes and drill the 5 on 5.5. Rotors are only $26.00 and I'll weld and drill. I got a drill template off the Moser Folks.

O well..

Justin

 

If the fronts were the same as the rears, you could've easily used any 5 on 5.5 rotor Ford had.

 

Ford Rotors are $91.00 each, Chevy rotors are $26.00 each... Plus Ford does not make a 5 on 5.5 rotor that will fit a 7" axle flange, they do make a 5 on 5 that will fit the flange and I can redrill it, but it is $91.00.....
So I can get both rotors, weld them up, and drill both for less than the price of one Ford rotor that I still have to drill.

Let me tell you, if you have a Ford with rear drums and you want Disk Brakes, this is not a bad way to go. AFCO racing sells the brake brackets ($12.00 each) that weld to the housing, and you can use the rotors I mentioned and if you don't want to drill them or weld them all yourself, Moser Enterprises will do it for you for $70.00. The setup uses calipers from a mid 70's Impala or Caprice (Front) and it is a breaze to install.

Anyway, if anyone wants to see pictures, let me know, they are on a Funny Car, but it is a Ford 9" Rear housing, so it would be the same for any Ford setup.


Justin

 

Here is a couple of photos of the rotor. I only welded the holes closest to the ones I was going to drill, this was to ensure the strength of the new holes. It was not required, but made me feel better.
They are 6 lug on 5.5" pattern, I made them 5 on 5.5". I will post pics of the mounting bracket with the caliper once completed.

My Funny Car is far from complete, but for those interested, here is a link http://www.alexander-grant.com

 

Sweet!!!! Nice truck's in the background too.

 

Replaced the white one with this one.. Also put a Big Block in the FC, and notice my Ford Windstar......