9" rear end question (bearing sizes)

The 9-inch rear end you have is the small bearing one. The axle bearings you'll need are p/n RW-207-CCRA.

The axle seal p/n is: 9568.

3rd Member-To-Housing Gasket: p/n RDS-55074

Axle Bearing Retainer Gaskets: p/n 55001 (2 req.)

Flange/Backing Plate Gaskets: p/n 4828 (2 req.)

Pinion Seal: p/n 7044NA

These are O'Reilly part numbers, but most any parts stores should be able to cross reference them.

I have the same rear end and want to install the FORD racing 9" rear disc brake kit. The kit requires the big bearing ends.

Before I pay to have the big bearing ends installed on my housing, I have this question: Will the big bearing fit on the small bearing axles or do I need new axles too?

the frpp kit is basically an off the shelf explorer setup. the good news is that the crown vic uses the same deal for small bearing axles. ultrastang did a writeup a while back, which covers the swap. iirc,the later police packages came with slotted rotors as a bonus...

chromedog said:

the frpp kit is basically an off the shelf explorer setup. the good news is that the crown vic uses the same deal for small bearing axles. ultrastang did a writeup a while back, which covers the swap. iirc,the later police packages came with slotted rotors as a bonus...

Click to expand...

Chromedog is correct in the fact the Crown Vic brakes are essentially the same as the Explorer setup (caliper and rotor-wise), with the exception that the Crown Vic calipers are flip-flopped on the axle housing (left caliper mounted behind the axle tube, right caliper mounted in front --while Explorer calipers both mount aft of the housing's tubes), and the fact that the C-V caliper anchor brackets (the cast components the calipers mount to), is designed to fit a small bearing housing, whereas the Explorer setup is designed for a large bearing housing.

I have a set of '98 C-V cop car rear discs in my shop. To my knowledge, none of the C-V cop car rear discs from '92-'95, then from '96-2002 had slotted rotors. All the rotors from these year models were of a solid design (just like the '94-'04 SN95 Mustang V6/GT rear discs --although larger in diameter than the SN95 discs).

The one variation that these year models did have was in the C-V police, taxis and station wagons. They came with stainless steel pistons in the rear calipers. All other common C-V civillian models had phenolic (plastic) pistons within the rear calipers. However, the steel pistons are a direct replacement in the calipers that have phenloic pistons.

In the case of the 2003-present C-Vs, the rotors weren't slotted but Ford did go to a ventillated rotor design in (all) these models. However, the biggest limitaton I see with the 2003-up version is that Ford turned the housing end flanges from a common horizontal position to that of a vertical one. This effectively screwed up the ability in this being a simple swap from the newer models to the old small bearing 8- & 9-inch rear end housings we are all fimiliar with.