[justpete]

Originally Posted by aloksatoor

Nice! It would take me a long time to put that many miles on her hahah (office commute is 2 miles one way) and the wife's car is the road trip car.

Thanks, it was this or the mfactory but I am going with local built from performance. BR racing has their diffs locally in the bay area as well.

Heh. Yeah, that'd take awhile alright. We use an 07 G35 as the family car, nobody rides in the bimmer except coworkers and customers.

Here are the actual specs on the diff, Jim was able to locate the serial number for it and told me where to find it on the case, too. It turns out it has four clutches per side instead of five and if I'm reading this right it would indicate the lockup can be as high as 100% in both directions.

"- 3.73L gearset

- four 90mm friction discs/plates

- 45/45 ramp angles

- 60 lbs/ft static lock ( resistance to rotation between the rear wheels , baseline minimum), comparable to approx. 35%

Because it is a true Salisbury design, the mechanical ramping mechanism that generates dynamic lock (throttle initiated) will augment static % for the full 35% to 100%, if called upon to do so. And since this design is "comprehensive" ( both static and dynamic lock capable) your accel/decel transitions should always be seamless without any abruptness."

It's definitely seamless, psychic is maybe a better word.