Diff Confirmation

[stroked]

So ive done a search and have found lots of information but no one has actually confirmed this good enough for me...

5spd manual, 2001. stock gearing is 3.07? or 3.73?

[willow]

3.07's. Auto's have the 3.73 I'm pretty sure.

[bonza]

3.07's. Auto's have the 3.73 I'm pretty sure.

yep, thats about right. there should be a metal tag attached to the diff cover bolts that have the ratio stamped on it, amongst other things like serial number, oil type etc.

or jack up the rear and rotate the tail shaft and count how many times it takes to turn the wheels one revolution

[stroked]

yep, thats about right. there should be a metal tag attached to the diff cover bolts that have the ratio stamped on it, amongst other things like serial number, oil type etc.

or jack up the rear and rotate the tail shaft and count how many times it takes to turn the wheels one revolution

tag is non existant haha.
yeah i just wanted a confirmation before i start purchasing things.

[ian]

3.07........

[RED_TJ]

mines a 2000 5 speed man an it runs 3.07

[Kiwi Jeeper]

3.07's. Auto's have the 3.73 I'm pretty sure.

Well, mine is 2001 3-speed auto, and its 3.07!!!

[stroked]

Well, mine is 2001 3-speed auto, and its 3.07!!!

auckland?

haha i rang wooders and he said it would be 3.07.


shiiiiiiit. how do i work out what it is? i know its like crown wheel divide something or rather...

[willow]

Well, mine is 2001 3-speed auto, and its 3.07!!!

You learn something new every day. A mates 99 TJ has a 3 speed auto with 3.73 in it.

[flexytj]

you should take this oppurtunity to regear

[Kiwi Jeeper]

You learn something new every day. A mates 97 TJ has a 3 speed auto with 3.73 in it.

I think Japanese market ones were 3.73s, but unfortunately mine was NZ new = 3.07!

[Rosie]

3.07 are the worst thing about Jeeps, re-gear while you can.

[stroked]

you should take this oppurtunity to regear

i would love too but sadly at the moment i just cant afford, i blew my budget on the stroker by a LONG shot.

ill regear in the future though, and when i do.. ill add a front locker.

[TJ Dave]

Gears and Lockers are definately the way to go

[stroked]

you guys think arb are good at installing their gear, like sounds funny i know. but i was considering going to a dana diff specialist...

[XJames]

ill regear in the future though, and when i do.. ill add a front locker.

You'll be up for another rear locker in the future as well then. As i under stand it there is one for 3.92 and numerically higher and one for 3.73 and numerically lower.
Just depends if you'll be happy with 3.73's in the future i guess, how big a tyre are you planning n running?

[Rosie]

You'll be up for another rear locker in the future as well then. As i under stand it there is one for 3.92 and numerically higher and one for 3.73 and numerically lower.
Just depends if you'll be happy with 3.73's in the future i guess, how big a tyre are you planning n running?

True but you can however get "Thick" gears to suit the RD117 which is made for 3.73 gears and down.

It's a hard call who to go to for fitting as if you have any issues it's a lot easier to hit up ARB.

[josh9465]

me 3. 99 3sp originally with 3.07

You learn something new every day. A mates 97 TJ has a 3 speed auto with 3.73 in it.

[MozMan68]

depends what engine here in the US....2.5L came with 4.10's.

[stroked]

does anyone know the maths on how to work it out?

crown wheel x _______

[bonza]

does anyone know the maths on how to work it out?

crown wheel x _______

Crownwheel teeth divided by Pinion teeth = Ratio.

eg. 41 Crownwheel teeth divided by 10 Pinion teeth = 4.10 Ratio.

[stroked]

Crownwheel teeth divided by Pinion teeth = Ratio.

eg. 41 Crownwheel teeth divided by 10 Pinion teeth = 4.10 Ratio.

thanks bonz..

[danmoore]

doesn't it read on the rear diff?

image below taken from: http://jeep.us41.org/wheels/index.html
V
http://jeep.us41.org/wheels/gears.jpg

[bonza]

doesn't it read on the rear diff?

image below taken from: http://jeep.us41.org/wheels/index.html
V
http://jeep.us41.org/wheels/gears.jpg

it does, but the OP said some prick had lost it

[stroked]

yeah mines non existant.

[danmoore]

ahh righto, my bad for not reading earlier posts :)