JJ and A Racing's "ROCK SLAMMER" Front Differential Sprague Carrier/Roller Cage 

In November 2007, after already breaking many OEM Plastic 3-Piece Front Roller Cages in our shop's 2008 RZR, we had finally had enough!

This is our own unique design (manufactured and sold by us) with all of the weak areas of the Polaris/Hilliard unit addressed.

We CNC machine our billet 1-piece roller cage from 7075-T6 aluminum and then we hard-coat it.

This is not color-anodized... it is an industrial hard-coating process.

It is absolutely not possible to build a higher quality aluminum unit!!

• COMES COMPLETE WITH NEW POLARIS H-CLIPS INSTALLED.
• ALSO COMES WITH A FULL SET OF NEW POLARIS ROLLERS.

We know other companies will eventually build cheaper aluminum versions but that's exactly what they will be... cheaper.

• DO NOT BUY AN ALUMINUM UNIT THAT IS NOT MACHINED FROM 7075-T6 ALLOY... IT WILL WEAR PREMATURELY.
• DO NOT BUY AN ALUMINUM UNIT THAT IS NOT INDUSTRIAL HARD-COATED... IT WILL WEAR PREMATURELY. 
• DO NOT BUY AN ALUMINUM UNIT THAT IS MERELY COLOR ANODIZED... IT WILL WEAR PREMATURELY.

REPLACES POLARIS PART #3234466 - FITS ALL YEARS POLARIS RZR800 AND RZR800S - ALSO 2007 AND NEWER SPORTSMAN 700 ATV AND SPORTSMAN 800 ATV

Notes: If you have just broken your OEM cage, you MUST also replace your Armature Plate (Polaris #3234407) - it is FOR SURE no longer flat enough for the coil to correctly magnetize it. In fact, we recommend NEVER reusing your Armature Plate once disassembling your front differential for any reason.

FREE SHIPPING UPS Ground to the lower 48 states for on-line orders.  

Here Jeff has decided to make a new trail...

For Jeff, the testing of his front differential is "every time he's in the car!"

(Jeff says now that the front differential is not giving us problems any more, maybe he'll start hot-rodding the motor!)  

This is not actually Jeff and Sandy's RZR but...

Jeff is the one driving it!!!

(didn't even get stuck!!)

Jeff's sister clicked this picture of Jeff and Sandy spending a relaxing day at the dunes!

Jeff gets Sandy's RZR wedged in a bottomless wind trench at the Oregon dunes...

Steve decides to do some "break-dancing robot-move" just as we shoot this pic!

Wyatt took his mom's car out in the dunes and really paid the price!!

Jeff had absolutely no mercy on him or the car!!

(you can see Wyatt in the car with his helmet on... good kid!)

"JJ and A Racing" Billet Aluminum Hitch w/2" Chrome Ball.

Fits ALL YEARS Polaris RZR 800 and RZR 800-S.

100% CNC Machined 6061-T6.

Slides into factory frame tubes; held in with 2 capscrews.

Used but in Nice Condition.

FREE SHIPPING UPS Ground to lower 48 states if ordered online.