Honda Civic EF 88-91 D-Series 36mm Axle Set K24Z Also fit H-Series with minor

Also fit H-Series with minor modification

Some case grinding may be required to clearance the gears

These K-Series gears are a direct swap for the OEM 1-4 K20 6 speed gears and can be used with OEM synchros or Synchrotech Carbon Synchros

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Honda Civic EF 88-91 D-Series 36mm Axle Set K24Z Also fit H-Series with minorFar more superior than your typical swap axles, Insane Shafts axles are made out of chromoly steel that is put through a proprietary annealing and heat treatment process that is capable of handling power demands in your choice of 500 or 1000 wheel horsepower. These axles are the perfect addition to your high performance vehicle needs. All insane shafts axles include removable ABS rings (if applicable) and new spindle nuts. Application: 88 1991 CIVIC