Karcepts 36mm Swap Hubs offer one of the most reliable and economical drivetrain solutions for track and high horsepower applications. These hybrid hubs share identical external dimensions with the original 1994-2001 Acura Integra and “Big Brake” 1992-2000 Honda Civic wheel hubs they replace; however, their center bores have been machined to accept the larger 28 tooth spline pattern found on “36mm” Honda/Acura axles. This allows EG, EK, and DC2 chassis to simply pop in the more robust axles found in vehicles like the RSX Type S, 2006-2011 Civic Si, and 1997-2001 Prelude. Prior to this solution, simple all-motor K Swaps using stock wheel hubs with standard “32mm” (26 tooth spline) axles would experience far too frequent axle snapping incidents. Karcepts 36mm Swap Hub customers making 8 second passes with their 1,000 WHP Civics have reported the ability to run a full race season on the same pair of factory Honda/Acura “36mm” axles without failure. Please note, axles subjected to high HP race applications should be treated as wear items, though historical data has shown OE “36mm” axles can handle much abuse.
- CNC turned from billet chromoly steel
- Oil quenched and tempered for improved fatigue strength
- Accepts the larger 28 tooth spline axles (these use a 36mm axle nut socket)
- Precision ground 43mm bearing journals
- 4x100mm bolt pattern
- Maintains OE rotor-centric attributes and offset
- Wheel studs not included
- Sold in pairs
1994-2001 Acura Integra models (excluding Type R)
1992-2000 Honda Civic models with 262mm (10.3") diameter brake rotors and 43mm I.D. wheel bearings
1992-2000 Civics left Honda's factories with two hub sizes. OE “Big Brake” (10.3" diameter rotor) Civics shared the same hub, knuckle, and 43mm I.D. wheel bearing with 1994-2001 4-lug Acura Integras. OE “Small Brake” (9.4" diameter rotor) Civics came with a smaller hub, a smaller knuckle, and a smaller 38mm I.D. wheel bearing. It is not always possible to determine hub size based on the vehicle's trim level, so the easiest way to confirm which Karcepts hubs to order is by measuring the diameter of the factory brake rotors. If the vehicle has an aftermarket brake kit, then the only way to know hub size is to measure the wheel bearing or hub itself. Karcepts 36mm Swap Hubs designed to fit 1992-2000 Honda Civic models with 240mm (9.4") diameter brake rotors and 38mm I.D. wheel bearings may be purchased here.
OE Honda Stud: 90113-SM1-005
ARP 1.85" Long Stud (4pk): 100-7709
ARP 2.85" Long Stud (4pk): 100-7711
It is critical to use proper length axles for the chassis and transmission utilized. There are several companies making specific "36mm" axles already built to the proper lengths. However, if you are able to score some premium OE Honda/Acura axles from a salvage yard, below are some combinations we have verified (We do recommend using only original equipment Honda/Acura axles, as their joints are far stronger than the generic auto parts store axles. Try searching car-part.com to view a database of salvage yard inventory across the country).
Option #1 - One USDM 2002-2006 Acura RSX Type S Driver Side Axle + One USDM 2006-2011 Honda Civic Si Passenger Side Axle (most ideal length)
Option #2 - One USDM 2002-2006 Acura RSX Type S Driver Side Axle + One USDM 1997-2001 Honda Prelude Base Driver Side Axle (slightly shorter than ideal length, but still within specifications)
Option #3 - One USDM 2002-2006 Acura RSX Type S Driver Side Axle + One USDM 1997-2001 Honda CRV Driver Side Axle (slightly longer than ideal length, but still within specifications)
Option #4 - One pair of USDM 2002-2006 Acura RSX Type S Axles (Driver + Passenger Side) with inboard joints swapped between the pair
Option #5 - One pair of USDM 2006-2011 Honda Civic Si Axles (Driver + Passenger Side) with inboard joints swapped between the pair
Option #6 - One pair of USDM 1997-2001 Honda Prelude Base Axles (Driver + Passenger Side) with inboard joints swapped between the pair
Options #4, #5, and #6 require the inboard joints to be swapped between the pairs of axles listed. This joint swap effectively adjusts (corrects) the axle lengths, and is mandatory to avoid issues. To perform an inboard joint swap: (1) Take one pair of axles mentioned above. (2) Remove (or cut) the large boot clamps on the inboard joints. (3) Slide the inboard joints off from each axle without disturbing the tripod bearings (hold axles vertically and lift joints straight upward). (4) Re-install the inboard joints to the other respective axle (i.e., move the male inboard joint to the original female axle; move the female inboard joint to the original male axle). (5) Pop the boots back into position on the joints and re-secure original boot clamps or install new boot clamps. You can find boot clamps at most auto parts stores that do not need any form of special tool in order to re-secure the boots to each joint (Beck Arnley: 103-0001).
One pair of USDM 2002-2006 Acura RSX Type S Axles (Driver + Passenger Side) + One Karcepts K-Series Axle Spacer for B-Series Transmission