Yeah anywhere from 3.08 to 3.42 gears, tire height makes a difference. With my 3.42 gears, 26.3" tires, I run about 1800 rpm and 60 mph, just over 2000 rpm at 70 mph with the 2004R locked up. If a 275/60R15 and a stock GN 8.5" rear was used, it would also make a great combo.Just don't go putting sticky rubber on it, and it'll probably be fine. A set of 3.08s out back, and the ol' diesel will just idle along at highway speed= AWESOME!
Yes, there should be a big one. When I changed my rotten trunklid, I lost that handy reference. I know 88 had either 2.56 or 3.08 gears, mine had a 2.56 open and no handling package. Other than the fiber optic indicators and sport suspension my car is a fully loaded Brougham, Grandparific at its finest. Was your 87 a factory 2004R car or 200C? Wasn't the base 200C gears 2.14?That makes me think, i actually dont know the rear ratio in this rear, ill have to check that when i get home. Should still be on the ID sticker on the underside of the trunk lid
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