1. Before mounting your new RaceGators Transmission to the engine, please check the following items.
    1. The seal plate for the transmission should fit snugly in the bellhousing bore. Although the fit is snug, it should still slip in freely and easily.
    2. Verify the bellhousing has been properly indexed to your block and crankshaft.
    3. Inspect the bellhousing for cracks and other damage. Damaged bellhousings are not safe for use and cannot support the transmission properly.
    4. The transmission input shaft must freely accept the drive flange without binding or sticking. Furthermore, the transmission input shaft should not bottom out on the crankshaft when seated against the bellhousing. Any type of binding or bottoming out will cause severe damage to the transmission and could cause severe damage to your engine.
  2. Use only the cast-in mounting boss to mount the transmission to the frame of the racecar. Any other methods of mounting may cause damage to the transmission.
  3. The use of a pilot bushing is not necessary unless the drive flange is worn excessively. In this case, we recommend replacement of the drive flange.
  4. Purchaser is responsible for his/her own drive flange. The transmission does not come with a drive flange of any kind.
  5. Grease the yoke splines of the driveshaft with anti-seize compound or high-temp/high-pressure moly-based grease before installation. During suspension travel, this will help to prevent binding and possible premature failure of driveline parts including the driveshaft and/or transmission. Apply a small coating of grease to the outside of the driveshaft yoke to help with installation. Using the grease fitting provided on the tailshaft, grease the driveshaft before each race to ensure proper movement inside the transmission. DO NOT OVER LUBRICATE. One or two pumps from a grease gun should be sufficient.
  6. We recommend using this transmission with a 3/4″ master cylinder. Some users prefer 7/8″ but 3/4″ is the recommended bore size.
  7. Connect the master cylinder to the clutch slave cylinder using a high-quality steel-braided hose. Fill the master cylinder with high-quality racing brake fluid and bleed the system using the slave cylinder bleeder on the back of the transmission case. The system should be bled until the clutch pedal has the same firm feeling as a brake pedal should.
  8. The RaceGators Transmission clutch does not have pedal travel like a “conventional” clutch, nor does it operate the same. The user will push the clutch pedal to engage the clutch and release the pedal to release the clutch. In other words, the user will need to have the clutch pedal depressed while in first and/or reverse gear. When using high gear, the clutch pedal does not need to be pushed.
  9. There are a number of shifter options available that work great with a RaceGators Transmission. Select a shifter based on your installation and verify that the shifter unit is free and cannot pull the transmission out of gear or prevent the transmission from going into gear due to binding.
  10. The RaceGators Transmission shifting pattern is labeled on the side cover. The front lever engages high or low gear (or neutral) and the rear level shifts into reverse. The transmission is prevented from engaging two gears simultaneously by an interlock assembly inside of the side cover.
  11. Never use the transmission without fluid. Always use a recommended transmission fluid in this unit otherwise damage to the transmission may result. Change fluid regularly – “at least” weekly is highly recommended. Approved fluids for this transmission are synthetic and nonsynthetic racing ATF, Dextron 3 ATF and nonsynthetic racing motor oil. Fill the transmission to the fluid level sight hole (top hole). Do not overfill. Do not use the transmission without fluid.
  12. We recommend checking clutch wear periodically by removing the slave cylinder from the back of the transmission. The 1/8″ plate does not need to be removed. Push the three pins and there should be at least 3/16″ (.1875″) of the pins protruding from the plate. If the pins cannot be pushed to be flush with the plate, the clutch discs are in need of replacement. Seal both the 1/8″ plate and the bolt threads with silicone-based sealant when reinstalling the slave cylinder. The slave cylinder should be reinstalled with the bleeder towards the top. Snug, do not overtighten, the 1/4″ Allen bolts.
  13. The steel drive discs of the clutch almost never need replacement (it can happen in rare instances). The other drive discs, however, are made of typical friction material as is found on other styles of clutches. These discs are available from your dealer. If your RaceGators Transmission dealer does not perform service on these units in-house, they should be able to provide a list of approved rebuild and service centers near you.



  1. Mount the transmission using the cast mounting boss on the underside of the output housing. The casing is designed to support the load here and nowhere else.
  2. Use the accelerator gingerly and smoothly when in low gear. Sudden or over-acceleration can overpower the clutch, leading to damage and premature failure.
  3. Use direct drive whenever possible. Low gear is meant strictly as a “pit gear” and not meant to be used more than absolutely necessary.
  4. Match RPMs when shifting and shift as smoothly as possible.
  5. The transmission should always be in neutral when warming up the engine. Using the transmission without load could damage the transmission.
  6. When using reverse, shift to reverse AFTER shifting to low gear in order to stop gear movement inside the transmission. If backing up before firing the motor (such as out of the pit stall), shift to reverse before starting the engine.


  1. Avoid slipping the clutch excessively. Excessive slip will lead to accelerated clutch disc wear and premature failure.
  2. Avoid using the clutch more than necessary. The clutch assembly inside of the RaceGators Transmission is very small and will wear more quickly if excessively used. When used properly, the clutch unit is extremely durable.
  3. Avoid applying excessive engine power when the transmission is in low gear or reverse. Direct drive (high gear) is intended for fast acceleration whereas low gear (and reverse) are intended to strictly get the car rolling.

Let your RaceGators Transmission dealer know if you experience any problems with your transmission. This product has been thoroughly tested both in production and on the racetrack. Because of this extensive research and development, it is our firm belief that your transmission will give you exceptional service. If this transmission fails to meet those expectations, please let us know.

As with all racing-related components and parts, we continue to create, research and develop new components for this transmission. Your dealer will be aware of these innovations as they become available.