Terry, Have you tried any other gearing with your FJ/510. I have the 3.7:1 open R180 and a 3.9:1 clutch pack LSD R180 that I use, though the 3.7 has recently started clunking. I found very little difference between the two ratios other than it seemed to boost up a little bit quicker with the 3.7 though traction is more of a problem with the open diff. I have recently been offered a 4.3, 4.8, or 5.1:1 diff but I think anything lower than the 4.3 will be completely useless. The 4.3 I would like to get for the short hillclimb tracks around Melbourne. How do you find the 4.375 gears? Have you tried anything lower? The only advantage I can see of the 4.8 or 5.1 ratio's in an FJ/510 would be the ability to take off in 2nd gear for motorkahna's or ultra tight hillclimbs/go kart tracks. How ever this is not something I would put my LSD through(I've just got it back from a rebuild) so I have considered getting a full spool machined up for the diff to eliminate the spider gears which seem to be the weak link. This set up would hopefully allow 2nd gear launches with a 5:1 without lunching the diff. Any idea if an FJ20T 5spd will handle that sort of abuse? Regards Jake _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
