Brinn Inc.

Brinn Frequently Asked Questions

Ordering Information

Q: Whom do I make a check out to for a COD delivery?
A: Brinn Inc.

Brinn Original Transmission

Q: What fluid is recommended for use in the Brinn Original transmission?
A: Dexron III ATF or equivalent, Racing ATF, or a 20W-50 non-synthetic engine oil are all approved fluids.
Q: How much fluid do I put in the Original Brinn transmission?
A: 1.0 quarts of fluid.
Q: What brake fluid is recommended for use in the Brinn Original transmission?
A: Castrol SRF, Motul RBF-600, Wilwood 570, or equivalent are all approved brake fluids.
Q: What size master cylinder should I use with the Brinn Original transmission?
A: Use a 3/4" or 7/8" master cylinder.
Q: How do I replace the clutch discs in the Brinn Original transmission?
A: Clutch Rebuild Instructions
Q: How do I perform a complete rebuild on a Brinn Original transmission?
A: Complete Rebuild Instructions
Q: What should the clutch free play measure in the Original Brinn Transmission with new clutch discs?
A: There should be .080”-.100” of free play with new clutch discs.
Q: How can I check for clutch wear without taking the transmission out of the car?
A: Take the slave cylinder off the back of the transmission, but DO NOT remove the intermediate shaft retainer. Push the clutch actuator pins into the transmission case and measure the remainder of the pins protruding from the case. When the clutch pack is new, the pins protrudes about 3/16” past the intermediate shaft retainer. If the distance from the protruding edge of the clutch actuator pins to the intermediate shaft retainer is about 1/16”, then the clutch pack needs to be serviced.
Q: How much does the Original Brinn Transmission weigh?
A: The 70001 transmission weighs 51.4 lbs (aluminum) and the 70010 transmission weighs 45.4 lbs (magnesium).
Q: What do I do if my transmission will not shift into reverse?
A: First shift into low gear. Once the transmission is low gear, quickly shift out of low and shift into reverse.
Q: How do I get my car to start moving forward?
A: Shift the transmission into Low gear then push the clutch pedal. Once the car reaches a suitable ground speed, let off the throttle and clutch pedal and shift into High gear.
Q: How do I get my car to start moving backwards?
A: Make sure the High/Low shift lever is in Neutral and shift the transmission into Reverse then push the clutch pedal. Reverse gear is not designed to handle high vehicle speeds.
Q: Why am I having trouble bleeding the clutch?
A: There is air is the system. Make sure the line from the master cylinder is directly routed to the slave cylinder. Any loops or kinks can trap air and not allow the system to bleed properly. Also, be sure the master cylinder piston is returning to the rest position. In the rest position, the fill port (small hole) should be uncovered. If the fill port is covered the system will never bleed properly.
Tip
To help bleed the hydraulic clutch system take the lid off of the master cylinder and open the bleeder on the clutch piston housing. Once the flow of brake fluid from the bleeder is steady, close the bleeder and place the lid back on the master cylinder. When these two steps are completed, one can begin pressurizing the system by pumping the clutch pedal and then opening the bleeder to vent the remaining air.
Q: What parts are included in the 70041 Rebuild Kit?
  1. Part Number
  2. Description
  3. Quantity
  4. 70046
  5. Clutch Assembly Wire
  6. One
  7. 71003
  8. Shift Lever O-ring
  9. Four
  10. 71010
  11. Retaining Ring
  12. One
  13. 71011
  14. Oil Seal
  15. One
  16. 71012
  17. Machined Bushing
  18. One
  19. 71016
  20. Clutch Release Spring
  21. One
  22. 71017
  23. Steel Clutch Pressure Disc
  24. Six
  25. 71018
  26. Metallic Friction Disc
  27. Six
  28. 71026
  29. Needle Thrust Bearing
  30. Two
  31. 71035
  32. Clutch Piston O-ring
  33. One
  34. 71040
  35. Rear Bushing & Seal
  36. One
  37. 71046
  38. O-ring
  39. One
  40. 71063
  41. O-ring
  42. One
  43. 73009
  44. Intermediate Shaft Thrust Race
  45. One
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Brinn Pro-Series & Pro 2.0 Transmission

Q: What fluid is recommended for use in the Brinn Pro-Series and Pro-Series 2.0 transmissions?
A: Mobil 1 15W-50 Synthetic Engine Oil is recommended.
Q: How much fluid do I put in the Pro-Series transmission?
A: 1.5 quarts of fluid.
Q: What brake fluid is recommended for use in the Brinn Pro-Series and Pro-Series 2.0 transmissions?
A: Castrol SRF, Motul RBF-600, Wilwood 570, or equivalent are all approved brake fluids.
Q: What size master cylinder should I use with the Brinn Pro-Series and Pro-Series 2.0 transmissions?
A: Use a 3/4" or 7/8" master cylinder.
Q: What should the clutch free play measure in the Brinn Pro-Series and Pro-Series 2.0 Transmission with new clutch discs?
A: There should be .080”-.100” of free play with new clutch discs
Q: When pressing the needle/ball bearing combo (71050) into the clutch drum (74017), what is the correct orientation of 71050?
A: 71050 should be oriented so that the needle bearings go into 74017 first.
Q: How much does the Brinn Pro-Series 2.0 transmission weigh?
A: The 70101 transmission weighs 48.8 lbs.
Q: How do I get my car to start moving forward?
A: Shift the transmission into Low gear then push the clutch pedal. Once the car reaches a suitable ground speed, let off the throttle and clutch pedal and shift into High gear.
Q: How do I get my car to start moving backwards?
A: Make sure the High/Low shift lever is in Neutral and shift the transmission into Reverse then push the clutch pedal. Reverse gear is not designed to handle high vehicle speeds.
Q: What are the advantages of the Pro-Series 2.0 over the Original Brinn Transmission?
A: The advantages of the Pro-Series 2.0 are as follows:
1. Lower rotating weight (inertia)
2. Lower static weight - The Pro-Series 2.0 is 2.6 pounds lighter than the aluminum Original Transmission
3. Ground clearance - The distance from the main shaft centerline to the bottom of the transmission case is 4.25”. This attribute allows extremely low engine heights.
Q: What parts are included in the 70047 Rebuild Kit? For Pro 2.0 Transmissions only.
  1. Part Number
  2. Description
  3. Quantity
  4. 71003
  5. Shift Lever O-ring
  6. Four
  7. 71011
  8. Oil Seal
  9. One
  10. 71017
  11. Steel Clutch Pressure Disc
  12. Four
  13. 71018
  14. Metallic Friction Disc
  15. Five
  16. 71026
  17. Needle Thrust Bearing
  18. Two
  19. 71040
  20. Rear Bushing & Seal
  21. One
  22. 71045
  23. Retaining Ring
  24. One
  25. 71066
  26. Bushing
  27. One
  28. 71068
  29. Piston Housing O-ring
  30. Two
  31. 71072
  32. Throw Out Bearing
  33. One
  34. 74060
  35. EPDM Clutch Piston O-ring
  36. Four
  37. 74061
  38. Viton Clutch Piston O-ring
  39. Four
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Brinn Modified Transmission

Q: What parts are included in the 70042 Rebuild Kit?
  1. Part Number
  2. Description
  3. Quantity
  4. 70046
  5. Clutch Assembly Wire
  6. One
  7. 71003
  8. Shift Lever O-ring
  9. Four
  10. 71016
  11. Clutch Release Spring
  12. One
  13. 71017
  14. Steel Clutch Pressure Disc
  15. Six
  16. 71018
  17. Metallic Friction Disc
  18. Six
  19. 71026
  20. Needle Thrust Bearing
  21. Two
  22. 71035
  23. Clutch Piston O-ring
  24. One
  25. 71046
  26. O-ring
  27. One
  28. 71052
  29. Front Seal
  30. One
  31. 71053
  32. Rear Seal
  33. One
  34. 71056
  35. Bearing
  36. One
  37. 71063
  38. O-ring
  39. One
  40. 73009
  41. Intermediate Shaft Thrust Race
  42. One
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Brinn Bellhousings

Q: What are the bellhousings made from?
A: All Brinn bellhousings are cast from magnesium for both light weight and strength requirements.
Q: What is the difference between an asphalt bellhousing and a dirt bellhousing?
A: The difference is the dirt bellhousing has a pump mount cast on top of the unit, while the asphalt bellhousing has the pump mount cast on the left side of the unit.
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Brinn Shock Dynamometer

Q: How do I operate the Brinn two-speed shock dynamometer?
A: Operating Instructions
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