Gear whine on 3.73s

[kn7671]

75w90 gear oil...? I'm pretty sure these cars call for 75w-140 gear oil specifically to quiet down the gear noises associated with 3.73 and numerically higher ratio's.

Also, some shops or mechanics will try to save themselves or customers money re-using the Inner Pinion Bearing and Race, and even sometimes the crush sleeve. I don't care if my car had 200-miles on it when getting a gear swap, a new Inner Pinion bearing is getting installed, regardless of the tools or confidence of the shop and/or mechanic. These few new additional parts cost only $75.00 at the most, and could be the difference between a happy or unhappy customer.

FYI - I have no knowledge of TrueStreet, their reputation, expertise on gear changes, or how they do anything. My comments are simply in reflection of my personal preference. I buy my own parts and watch the mechanic do the install, or it doesn't get done.