Racing Rearend Build
  • Racing Rearend Build
    With the axles in place, the drive flanges are ready to be installed. But first we thought we’d show you a shot of the underside of these billet flanges before they are bolted up. Notice the O-ring which should seal the flange so that no messy silicone is necessary. Often, it’s the little details like this that will make you life as a racer much easier.
    With the axles in place, the drive flanges are ready to be installed. But first we thought
  • Racing Rearend Build
    Bolt the drive flanges up. With the flange cover off it’s possible to easily and quickly remove the axles for inspection if necessary.
    Bolt the drive flanges up. With the flange cover off it’s possible to easily and quickly r
  • Racing Rearend Build
    The Joe’s Racing billet aluminum flange covers not only look nice, but they shouldn’t get bent up and start leaking from after a couple of races.
    The Joe’s Racing billet aluminum flange covers not only look nice, but they shouldn’t get
  • Here’s a shot of the completed assembly.
  • Racing Rearend Build
    Before sliding the rearend underneath his race car, Hargett takes a moment to bolt up the brackets for the torque arm.
    Before sliding the rearend underneath his race car, Hargett takes a moment to bolt up the
  • Racing Rearend Build
    Now we’re ready to begin the process of hanging the rearend underneath the car. This chassis uses a four-bar setup, and the suspension arms bolt to the birdcages with Heim joints.
    Now we’re ready to begin the process of hanging the rearend underneath the car. This chass
  • Racing Rearend Build
    Harget showed us this trick to keep the Heim joints rotating smoothly. He uses a grinder to roll back the underside of the head of the bolt (right) so that it can’t catch and hang on the shoulder of the Heim joint like a stock bolt (left) potentially can.
    Harget showed us this trick to keep the Heim joints rotating smoothly. He uses a grinder t
  • Racing Rearend Build
    In addition to the other components we’re using from Joe’s Racing, we’ve also chosen this billet aluminum J-bar. Keeping all unspring suspension components as light as possible is critical to making the car’s handling as responsive as possible, and the billet aluminum design accomplishes that while also being quite strong and capable of handling abuse.
    In addition to the other components we’re using from Joe’s Racing, we’ve also chosen this
  • Racing Rearend Build
    Here, you can see the J-bar being installed on the car. It works like a Panhard bar to locate the rearend laterally, and the curved design allows it to clear the driveshaft even with the extreme movements a dirt car rearend will make as the driver attacks the racetrack.
    Here, you can see the J-bar being installed on the car. It works like a Panhard bar to loc
  • Racing Rearend Build
    Joe’s Racing says it has customers that have found running lightweight gear oil in the hubs versus the more standard practice of packing it with grease can free up 6 to 8 horsepower. Joe’s recommends between 4 to 7 ounces of 85- or 90-weight gear oil. The easily removable seals make it easy to inspect your hubs weekly to get the maximum performance. You can’t see it in this photo, but each hub comes with an easy to reach fill hole. Just spin the hub until it is on top, pour in your gear oil and thread the plug back into place.
    Joe’s Racing says it has customers that have found running lightweight gear oil in the hub
  • Racing Rearend Build
    Your chassis builder can provide you with measurements for setting up the rearend in the car. Most will give you baseline lengths for all four suspension arms and another measurement to locate the rearend laterally underneath the car.
    Your chassis builder can provide you with measurements for setting up the rearend in the c
  • Racing Rearend Build
    Finally, the fill tube is attached to the bell. Every gear change drains the rearend of much of the lubrication, and the fill tube allows to quick lube refills from outside the car.
    Finally, the fill tube is attached to the bell. Every gear change drains the rearend of mu

AMSOIL: Superior Lubrication
Bulldog sends a gallon of gear oil along with its rearend, but we prefer to run AMSOIL Severe Gear SAE 75W-110 because we're confident in its ability to provide superior lubrication and also pull damaging heat out of the ring and pinion gears.

SOURCE
Joe’s Racing Products
425-267-9199
www.joesracing.com
Jim Cook Racing Transmissions
Charlotte
NC
704-786-6979
Stuckey Enterprises Racing
318-929-2621
www.stuckeycars.com
Bulldog Rear Ends
717-397-5347
www.diversifiedracing.com