331CI 280z Posted March 27, 2006 Share Posted March 27, 2006 Hi. I just finished mu LSD install and took the car for a short ride. What a difference!!! Are there any break in procedures that I should try to follow. I installed a PG Power Brute diff in a '85 200sxt rear. I replaced the differential bearings, and checked preload and backlash. I'm using the NISMO cover and fabbed a brace out of aluminum. I put redline gear oil in, and I can notice a slight whine on decel. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted March 27, 2006 Share Posted March 27, 2006 Ring and pinions need to be broken in. LSDs and bearings don't. According to this: http://www.ringpinion.com/content/technicalhelp/default.asp?pid=109 your pinion bearing preload might be a little loose. I haven't found R180s or R200s to be the quietest diffs around, so you may consider just living with it if it isn't really obnoxious. Quote Link to comment Share on other sites More sharing options...
331CI 280z Posted March 27, 2006 Author Share Posted March 27, 2006 Thanks for the info. I wasn't sure if anything special had to be done, for the clutches to wear properly. Quote Link to comment Share on other sites More sharing options...
Doug71zt Posted March 28, 2006 Share Posted March 28, 2006 If you took out something like a 3.54 and put in the 4.11, you will notice some more noise. It seems to me that higher ratio diffs make more gear noise. In the 240, this is very noticeable because of the close proximity of your head to the diff and the lack of any sound deadening between the two. I went back to a 3.7 from a 4.11 and my car got quieter. All the diffs I have had in my car have had good patterns and backlash, so I don't think that it is too much of a set-up related problem. Doug Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.