Gears questions

[The Midnight]

1994 mustang gt I have a 20 inch wheels with a shift kit(auto) I turn 2k at 60mph.....the car is a dog and i want to get gears how much will they raise rpms? which should i get 3.73,3.90 or 4.10?

 

[joekd]

Most of your problem is the weight of those 20" wheels

 

[MustangChris]

those wheels add alot of of rotational mass.... if you swap to something smaller, it'll free up some of that power you're looking for.

BUT. if you dont want to, i'd suggest 4.10s. at 60MPH youre closer to 3k but the accelteration cant be beat!

 

[Nightmare]

BUT. if you dont want to, i'd suggest 4.10s. at 60MPH youre closer to 3k but the accelteration cant be beat!

IF you do a lot of freeway driving, I would do a set of 3.73's. I am turning about 2300rpm, and it gives decent accell

 

[MustangChris]

oh. i see what you did there.....

 

[NXcoupe]

Yeah, 4.10's so you can spin the centers out of your 20's lol. j/k. 4.10's with those big wheels would be about right I'd think.

 

[KillNThrill24]

based on what iv seen i would agree on the 4.10's especially since its an auto. i drove an 02 F350 across the country with 4.10's and its an auto and it did quite well even on the interstate. tho i never could go above 80 because i had a 32' trailer attatched to it. but from a stand still, the take off was far better in that truck than my dads truck and hes got 3.27's i believe but same truck.

i personally am in the process of instaling 4.10's in my stang, and cant wait to see how they rip up the tires lol.

running 20's your gonna wanna go with the lower gears anyways, so 4.10's would probably be the best route for you. like stated above tho if you spend a lot of time on the highway may wanna consider 3.73's but like i said that truck did ok since it was an auto.

 

[Venom351R]

4.10's for sure, would be better with 18's

 

[Tony]

whaat, noone mentioned me with the 20's and gears, lol??? i have 3.73 gears and 20x10's out back and i know for a fact that the hp, or power to the ground is not at all any different. my 17" stock wheels and tires were nearly the same size in overall diameter as these 20's. and the weight is actually lighter than the 17's were.

as far as gears, dude i loooove these 3.73 gears from jegs performance. quiet as a mouse and fuuuk did they make a huge difference. they will def get those gigantic huge 7,000 lb spaceship looking wheels moving with not one single issue. take it from me, who actually has 3.73's and 20's.


pics please, just for me cause i love sn's on 20's

 

[KillNThrill24]

^tony thats quite surprising that your 20's weigh less than the stockers but then again they are aftermarket!

 

[Tony]

yea they are all aluminum and the stock wheels are alot thicker in the spokes. i actually dont know the weight of them both just by feel they feel lighter. i cant really even say that for sure though. def dont feel heavier, lol.

 

[GT Rob]

I have an auto and I'm running. 373