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Z31 4 to 5 Lug Swap Information - Front Rear Swap Info Order Part Code Description Part Numbers Applied Model Rotor Brakes 1 40207A Bolt - Rotor to hub 01125-00321 All NA, 84-86T Any, exc 87-89T Any, exc 87-89T 2 40207B Washer - Rotor to hub 01321-00071 All NA, 84-86T Any, exc 87-89T Any, exc 87-89T 3 40207 Rotor 40206-03P02 84-85 NA 84-86 87-89 non-turbo 40206-03P14 84-86 5 lug 87-89 non-turbo 40206-22P02 87-89 turbo 87-89 turbo 4 40232 Seal 40232-N7100 84-86 Any Any 40232-41L00 87-89 5 40210 Bearing 38440-41B02 All Any Any 6 40222 Stud 40222-22001 84-86 Any Any 43222-50A00 87-89 non-turbo 43222-91P00 87-89 turbo 7 40202 Hub 40202-01P25 84-85 non-turbo 84-85 non-turbo 84-86 87-89 non-turbo 40202-02P25 84-86 5 lug 84-86 5 lug 40202-22P25 87-89 non-turbo 87-89 non-turbo 40202-21P25 87-89 turbo 87-89 turbo 87-89 turbo 8 40215 Bearing 40215-A0100 All Any Any 9 40264 Washer 40264-E4100 All Any Any 10 40262 Nut 40262-S0400 All Any Any 11 40265 Cap 40264-68200 All Any Any 12 00921-4352A Cotter Pin 00921-4352A All Any Any 13 40019M O-Ring 40290-S0400 All Any Any 14 40234 Dust Cap 40234-S0400 All Any Any 15 41001 41011 Brakes 41001-03P90 41011-03P90 84-86 87-89 non-turbo 84-86 87-89 non-turbo 41001-21P00 41011-21P00 87-89 turbo 87-89 turbo Going by all this, the hubs are completely interchangable. Just be aware of the brakes and rotors. To do a 4 to 5 lug swap, all you need is the 5 lug hub assembly (with the seals and wheel studs) (part number 40202-02P25 or 40202-22P25 x2) and the appropriate 5 lug rotor (part number 40206-03P14 x2). Of course, since you're pulling everything apart, it would be a good time to inspect and possibly replace the bearings and install with new oil seals and grease. If you get a pair of 87-89 turbo hubs, you can upgrade the front brakes with Z32 brakes.