So after I started grinding into 1st on my stock gear oil, (~20k) I opted to try synthetic ( of the mobil 1 variety) seemed smoother at first, but after ~a week, problems started to arise..... I was scared to shift into 1st from a stop as it would grind 75% of the time .....The tranny felt weak and the oil seemed to be waaay to slick...
I lived w/this for about ~8000mi and finally decided to do something about it. (warrranty was out of the question )
Researched tons and tons of of gear oils and found inconsistant reviews about everything till I ran across GM synchromesh. Three weeks ago I swapped out the mobil one and made a gear oil "cocktail": 2.7 quarts of regular *** dino 80w90 valvoline and 1 quart of GM synchromesh(<-------this crap is xpensive!)
WOW! What a difference. Smooth as hell, NOgrinds whatsoever, much lower decel noise and all around a much smoother tranny...feels better than new.
:banana: :banana: :banana:
Just thought I'd share my experiences w/this great stuff.....so what if I have to change it more often?? Hell I'd do it every oil change if that's what it takes to stop those nasty grinds.
I never thought I'd be saying this, but THanks GM!!