Jellybean Posted May 19, 2013 Share Posted May 19, 2013 (edited) I have a rz jspec TT but she has the uk diff case; I see the diff has two options 200mm 10-bolt ring gear or the 220mm 12-bolt ring gear My frame.no is useless because it is not a jspec casing , anybody know what one I should get? Do you have to break them in? Edited May 19, 2013 by Jellybean (see edit history) Quote Link to comment Share on other sites More sharing options...
Nic Posted May 19, 2013 Share Posted May 19, 2013 (edited) The UK spec is fitted with the larger B diff (check axle code on the VIN plate), you'll need this one 41301-JA800 TRD LSD Edited May 19, 2013 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
Kaan W Posted May 19, 2013 Share Posted May 19, 2013 I heard you had to do figure of eights to break them in, dunno if it's true or not but if there not broken in correctly they can fail apparently. I have an auto UK spec diff so would like to know this also. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted May 19, 2013 Author Share Posted May 19, 2013 The UK spec is fitted with the larger B diff (check axle code on the VIN plate), you'll need this one 41301-JA800 TRD LSD Thanks Nic Quote Link to comment Share on other sites More sharing options...
V8KILR Posted May 20, 2013 Share Posted May 20, 2013 I heard you had to do figure of eights to break them in, dunno if it's true or not but if there not broken in correctly they can fail apparently. I have an auto UK spec diff so would like to know this also. Never heard that before. I've got the TRD in my UK spec TT auto diff and I just drove it normally. Quote Link to comment Share on other sites More sharing options...
supra matt Posted May 20, 2013 Share Posted May 20, 2013 I had a Kaaz diff once and the instructions in that said you had to do figure of 8 for 30 min then change the oil . Quote Link to comment Share on other sites More sharing options...
Jellybean Posted May 20, 2013 Author Share Posted May 20, 2013 I had a Kaaz diff once and the instructions in that said you had to do figure of 8 for 30 min then change the oil . That's what I was thinking Quote Link to comment Share on other sites More sharing options...
Wez Posted May 20, 2013 Share Posted May 20, 2013 I heard you had to do figure of eights to break them in, dunno if it's true or not but if there not broken in correctly they can fail apparently. Never heard that before, I have a TRD in a large casing with Chris Wilson fitted for me years ago. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted May 20, 2013 Author Share Posted May 20, 2013 Does anybody have the instructions Reading on Supra Forums , I have read it a few times they break them in with figure of 8's Quote Link to comment Share on other sites More sharing options...
Jellybean Posted May 20, 2013 Author Share Posted May 20, 2013 Never heard that before, I have a TRD in a large casing with Chris Wilson fitted for me years ago. What oil do you run Wez? What is the oil interval, maintenance like in general Just trying to guage versus my carbonetics, if it is an option for me to go TRD Quote Link to comment Share on other sites More sharing options...
Wez Posted May 20, 2013 Share Posted May 20, 2013 Mine gets regular oil changes when I use the motor, its got a diff leak and has had for ages, one of the seals has gone on more than one occasion which is frigging annoying. I use the stuff that Oilman recommended, Fuchs Titan Race something Quote Link to comment Share on other sites More sharing options...
Jellybean Posted May 20, 2013 Author Share Posted May 20, 2013 I use the stuff that Oilman recommended, Fuchs Titan Race something Thanks Wez , probably the 90 LS stuff , same as the Motul PA90 Quote Link to comment Share on other sites More sharing options...
supra matt Posted May 20, 2013 Share Posted May 20, 2013 http://www.diffsonline.com/techinfo/Differential%20break%20in.pdf Hear you go mate Quote Link to comment Share on other sites More sharing options...
tDR Posted May 20, 2013 Share Posted May 20, 2013 I broke my TRD in with fig.8's + circles both ways in a dis-used car par park, about 20 of each at slow speed. I then dropped the oil and refilled with fresh Silkolene BOA mineral diff oil as recommended by Opie. There's also recommendation not to exceed 85mph for the first 1,000 miles or so in case of bearings overheating but I didn't bother with that. My TRD then went on to normal service with no unwanted vibrations or noises I've seen from many aftermarket diffs. It was fitted with new seals and carrier bearings and never leaked. Cheers, Brian. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted May 20, 2013 Author Share Posted May 20, 2013 Thanks guys Quick, just back from the garage and looks like a bearing is gone, carrier bearing we think; going to strip the LSD next week Are the OEM bearings the same for jspec and uk diff casings? I have a uk in a jspec car Quote Link to comment Share on other sites More sharing options...
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