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  BMW Forums » BMW discussion forums » BMW Z-Series
  40% lockup in the diff?

 40% lockup in the diff?



Talked to a guy over at a race shop about getting the 3.73 freshened up a bit. Talking about putting in another plate and increasing the lockup to 40%, and then replacing the seals and such for me. Sounds like a good deal.

Think its worth doing?
   Reply » 40% lockup in the diff?

Quote:
Talked to a guy over at a race shop about getting the 3.73 freshened up a bit. Talking about putting in another plate and increasing the lockup to 40%, and then replacing the seals and such for me. Sounds like a good deal.

Think its worth doing?
Exactly what I plan to do with mine. My first 3.73 is on it's last legs. I already picked up a second used 3.73 to put in the car temporarily. The plan is to get the old 3.73 with 40% lock-up...I just need to decide who I will go with...Jim Blanton, Rush Motorsports, Metric Mechanic, and Koala are who I plan to choose from

MSH

   Reply » 40% lockup in the diff?

I got a local guy who does diffs all the time. I figure i will let him have a go at it, and I will let you know.

What does this kinda thing usually run?

   Reply » 40% lockup in the diff?

The 3.73:1 I got from BMP included 40% lockup.

   Reply » 40% lockup in the diff?

Your posts are what got me thinking...

But how much did you spend on your diff?

I think everyone here knows how frugal I am.

   Reply » 40% lockup in the diff?

Quote:
Exactly what I plan to do with mine. My first 3.73 is on it's last legs. I already picked up a second used 3.73 to put in the car temporarily. The plan is to get the old 3.73 with 40% lock-up...I just need to decide who I will go with...Jim Blanton, Rush Motorsports, Metric Mechanic, and Koala are who I plan to choose from

MSH
Mark,

I plan to put in a Quaife with 3.73. Probably this Winter. Ramon at Bavarian Motorsports in Milpitas will be doing the install for me.


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