bluepony1

what gears come stock on a 91 5.0 automatic

Aliate X

2.73 im pretty sure.

bluepony1

would there be any performance advantage to swap to 4.10s

Aliate X

Lol it would be like putting a supercharger on the car, only your losing top end. I have 4.10s sitting on my desk waiting to be installed. If you dont do much highway driving/dont mind cruising at the speed limit 3.73 or 4.10 gears would be an AWESOME upgrade.


Keep in mind though, on stock tires with 4.10s you will spin the tires a lot, it would be hard to get traction.

grabbem88

auto's were 3.08's too off set the performance from the 5-speed.....which were 2.73's...

Aliate X

Oh I guess I had it mixed up, well still, you would notice a bigger diff from doing the gears than any bolt on, and problem more than putting heads on the car.

vfast

no you both were right they can in 2.73's and 3.08's and could be ordered with about any gear upto 4.10's.....

grabbem88

when was that v......never knew that....3.27's,and maybe 3.55's was an option,but most were more concerned for mpg than performance.

luckythirteen13

my auto has 2.73's...i checked before i bought my gears

Quik

STOCK GEARING IS 273 FOR BOTH T5 AND AOD. OPTIONAL IS 327 FOR AOD AND 308 FOR T5. we have said this over and over again.