1987 Cutlass Build

olds307 and 403

olds307 and 403

Geezer
Oct 14, 2008
5,057
113
Melville,Saskatchewan
Even if it does at die, at least you haven't cut the drive shaft to make it fit. If it has some upgrades and a deep pan it might live. At the very least overfill it with the stock pan and filter.
 
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84dragcutlass

84dragcutlass

G-Body Guru
Aug 20, 2009
872
93
North Vernon IN
I might just give it a try, saves me some money even if in the short term and at very least i wont have another trans laying around unused.
 
olds307 and 403

olds307 and 403

Geezer
Oct 14, 2008
5,057
113
Melville,Saskatchewan
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!
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.
 
84dragcutlass

84dragcutlass

G-Body Guru
Aug 20, 2009
872
93
North Vernon IN
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
 
olds307 and 403

olds307 and 403

Geezer
Oct 14, 2008
5,057
113
Melville,Saskatchewan
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
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?
 
84dragcutlass

84dragcutlass

G-Body Guru
Aug 20, 2009
872
93
North Vernon IN
Mine was factory 200R4 and pretty much a base model, no vinyl top, roll up windows, no outside trim, solid bench seat. I bet it has something like 2.56 gears because when it had the 350 and 350TH trans it was a dog down low but cruised like a champ. Its an open rear but a cheap mini spool will solve that
 

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