Ok, so I put 75/90 Mobil1 in front and rear diffs, atf+4 in the tcase, and trans has new atf+4 also. I dont have a tow package so they said i dont need "additive"? Should I put some in the rear end? Will this cure the hopping feeling while turning? It happened 3 times, and I quit turning that sharp.

5.2, 1994, limited, 249, stock. 65,000 miles
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Mobil 1 75W-90 is fully synthetic so it's possible a limited slip differential may need a friction modifier/additive.

I know it may sound odd, but my '93 was doing the same thing, I had the ball joints changed and it fixed the problem. I asked the mechanic what fixed it and he said that was the problem, so it might be worth looking into for you as well :lol2:

Unless you have a locker in the rear there is no need for an additive. If I had to place a bet on this issue I would bet on your 249 acting up.

Ok, so I put 75/90 Mobil1 in front and rear diffs, atf+4 in the tcase, and trans has new atf+4 also. I dont have a tow package so they said i dont need "additive"? Should I put some in the rear end? Will this cure the hopping feeling while turning? It happened 3 times, and I quit turning that sharp.

5.2, 1994, limited, 249, stock. 65,000 miles
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