Frizzy Posted March 12, 2020 Share Posted March 12, 2020 Hi all, I'm wanting to fit an LSD into my NA mk4, is the diff a straight forward swap or are there other components I need to change? Also which LSD would people recommend? Thanks Quote Link to comment Share on other sites More sharing options...
AC93 Posted March 12, 2020 Share Posted March 12, 2020 If you want an OEM swap then you need to find a A01B, A02B or A03B diff. Aftermarket you have options like OS Giken, Cusco and Kaaz Quote Link to comment Share on other sites More sharing options...
P_Bazz Posted March 12, 2020 Share Posted March 12, 2020 I would change at least the side bearings and seals while you change the unit to a new LSD, the pinion bearing would be fine as is not necessary to be removed. You will also need a set of new crown wheel bolts as these are not reusable as per Toyota instructions. I've swapped my NA5 to a TRD LSD a few years ago and these were the part numbers: 90301-96003 O-ring x2 90366-50033 Bearing x2 90311-47008 Seal x2 90105-12219 Bolt x10 90521-34003 Axle Stub snap ring x2 41336-24020 Dust cover x2 12157-10010 Case plug washer x2 If you do decide to do the entire diff you also need: 90368-34007 Bearing x1 41231-50010 Spacer x1 90311-44005 Seal x1 90179-26005 Nut x1 90201-700(XX) Adjusting Washer (numbers are 01-42 for a 1.87 to 2.28 mm adjustment) Quote Link to comment Share on other sites More sharing options...
Frizzy Posted March 12, 2020 Author Share Posted March 12, 2020 Ah that's great thanks alot guys Quote Link to comment Share on other sites More sharing options...
Frizzy Posted May 24, 2020 Author Share Posted May 24, 2020 Just a quick one guys, a friend of mine might be breaking his facelift TT auto mk4, would the diff from that fit my 5 speed manual NA? and if so what differences will I expect over the open diff on mine already? Thanks Quote Link to comment Share on other sites More sharing options...
erachter Posted May 24, 2020 Share Posted May 24, 2020 if your friend has a A02B and you have A01A the gear ratio will also be different. You can find what diff the car has on the VIN plate. I've attached a picture with diff differences Quote Link to comment Share on other sites More sharing options...
Frizzy Posted May 24, 2020 Author Share Posted May 24, 2020 Ah right cool cheers mate Quote Link to comment Share on other sites More sharing options...
Scooter Posted May 24, 2020 Share Posted May 24, 2020 Also the prop flange on a TT is larger than on an Na so that would need swapping. Quote Link to comment Share on other sites More sharing options...
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