how do u find out gear ratio ?

Gone Jeeping · 05-22-2009, 09:43 PM

i was looking under the jeep on the rear end and found a little metal plate . it read this 52068860 LS
3.55 5662-3 does anybody know how to read this i belive its saying limited slip and that i have a 3:55 gear raito. is this true ? if not were find the gear raito on the rear end ? (i own a 94 wrangler 4.0 with abs brakes)

1BLKJP · 05-23-2009, 02:30 AM

You are right. You have 3.55's and a limited slip.

The other two ways of determing Gear ratio are: count the teeth on the ring gear and divide them by the teeth on the pinion. Second would be to jack up the rear end and count how many revolutions the driveshaft makes for one complete revolution of the tires. In your case it would go 3 and a half times.

**joemd60** · 05-23-2009, 08:19 AM

Okay I have the jeep from outer space where nothing is easily explained.

Here is what my rear differential reads: The tag says 52111760AF 07606854
And the hub near the plug says:
432259484
REV K
02 27 97
That my friends tells me nothing, I know it is a DANA 35 but that is it.

**joemd60** · 05-23-2009, 11:44 AM

So... anybody able to figure out my gear ratio?

Gone Jeeping · 05-23-2009, 11:48 PM

well one of those numbers is the date . the tag your looking for is going to be on the bolts holding together the diff cover ! if you dont have one u can do what the guy posted above me . and put a mark on the drive shaft going across to the diff and then count the revolotions for example if the tire went three and a half times for one full time of the drive shaft u would have 3.55 like i do or if it went 3 time you would have a 3.07 so on and so forth . and thanks to the guy for the help i apreate it

scrambler1 · 05-24-2009, 06:19 PM

check this out-

What Gears do I have?

ahogan1976 · 11-20-2009, 09:18 PM

Quote:

Originally Posted by joemd60

Okay I have the jeep from outer space where nothing is easily explained.

Here is what my rear differential reads: The tag says 52111760AF 07606854
And the hub near the plug says:
432259484
REV K
02 27 97
That my friends tells me nothing, I know it is a DANA 35 but that is it.

That top number is actually telling you the part number for the axle fluid. Second line, if you look closer to the left where the head of the bolt covers half of it, should say a 3 . 07 606854 - 1. That's telling you the gear ratio and axle type.

wolfen · 11-22-2009, 06:41 PM

What if you don't have any tags on the diffs?
I know what mine are though
2.74:1 (first gear)
1.54:1 (second gear)
1.00:1 (third gear)

(Furthermore, our records also indicate that your vehicle has 3.73 Axle
Ratio with 175MM Rear Axle and Dana 30/186MM Front Axle.)

I sent them the vin

(yea, yea, yea,I know the rear is kinda sucky)