These revised sleeves are required when using the TKR9141B -2mm spindles with CVAs and have been modified from the stock TKR9057 sleeves to provide clearance for the 15x21x4mm bearings. However, if you are running UNIs, the standard TKR9057 will work just fine. They are a direct replacement for TKR9057 going forward and are compatible with TKR9141 standard height spindles.
Recommended to use with:
TKR9141B Adjustable Ackerman Spindles (-2mm, EB/NB 2.1, requires TKR9057B)
Vehicle Compatibility
TKR9057B - Spindle Pin/Sleeve Set (revised, short/long, EB/NB48 2.1) is not included with any kit.
This can be used with the EB48 2.1 and NB48 2.1 vehicles and should be a direct replacement for the stock part or used as a new feature. Please use the instruction manual for the kit(s) listed to verify compatibility and no additional items are necessary before purchasing.