Dear Forum Gods

[Deuce450]

I need help with one of the most asked questions, what gear size should I run.
I've been told 3.73 and 4.10 but I would like to know what the forum thinks. The motor is stock with bolt ons, I will have Nitrous, and has an AOD . The car needs to be streetable but perform at the track. I know that I can't have both so I lean more to streetable. Thank you forum gods.

Oh yea, Scott you want to rebuild my 8.8 for me?

[BigWheelinBubba]

4.10 with AOD and 3.73 with a stick, thats the general rule of thumb.

[Strtracer]

Originally Posted by BigWheelinBubba

4.10 with AOD and 3.73 with a stick, thats the general rule of thumb.

I would agree with that, except that he's says he wants to lean more towards streetable, so I would say 3.73. Also, nitrous use tends to make the motor tac quicker, so 3.73's should be more than adequate.

[GTrackd]

I say 4.10's in an auto...... shit I wish i woulda put them in my car instead of my 3.73's...

[Strtracer]

Originally Posted by GTrackd

I say 4.10's in an auto...... shit I wish i woulda put them in my car instead of my 3.73's...

But youve got a 4.6, it really needs more gear cause it needs to rev higher, quicker because of the low torque. He's got a 5.0, alot more low end.

[357windsor]

I'd say go with the 3:73's especially w/ the spray. Just my .02

[Lisa]

A 5.0 w/ those mods, and since you want it more towards the streetable side....I'd say 3.73's.

[BigWheelinBubba]

I still would say you could run 80mph on the highway with 4.10's and overdrive. Unless you're one of those left lane haulers and like to go 100 i'd go with the 4.10's

[GTrackd]

Get 4.56's......

[Strtracer]

Originally Posted by GTrackd

Get 4.56's......

lol 4.88's and a two speed

[Scott_DriveLineSolutions]

Hell, go with 4.88 or a 5.13 who need driveability.... Let me know what you think, I would go with a 3.73.

[357windsor]

5.13's=

[GTrackd]

werd, maybe get a lowrange transfercase off of an old 4x4.......................
And then..... the 5.13's

now that i think about it....3.73's on the bottle dont sound too bad......

[Deuce450]

Originally Posted by BigWheelinBubba

4.10 with AOD and 3.73 with a stick, thats the general rule of thumb.

So the use of Nitrous changes this general rule? If this is the case then why not run 3.90's? On the streetable side I just don't want to be turning 4,000rpm going down the freeway. I generally drive between 70-80mph. This is not my daily driver but I do like to drive the stang to work (40 miles one way) and just take it for a spin when ever I can. Thanks for all the info. this site is the BEST.

Scott, I'll call you today to set up a time.

[357windsor]

Glad we could help!