hey i recently had 4:10s installed and the car felt great at lower speeds. I got on the expressway and accelerated to around 70-75 and i noticed the rearend began to tighten up and so i pulled off. at that point I noticed the rearend leaking fluid around the yoke. Anyways its leaking from the pinion seal and there may be some issues with the bearings?? it is a stock 10bolt w/ auburn differential. has anyone been is this situation or know what may be causing this? any input would be great. thanks

 

4:10's on the expressway is a bad idea imo...

 

Not with an M6.

 

I wouldnt have it any other way