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post #1 of (permalink) Old 07-27-2003, 02:38 AM Thread Starter
 
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9\" gear ratio identification?

ok, i just picked up my 9" out of a 74 or 5 f100 (later to find out the axle is from an 83 f150) that im going to swap into my 88 jeep cherokee and ive run into a slight problem

there is no id tag on it and i was wondering if i could find out the gear ratio by using the numbers on the third member or not, i dont have time within the next week to pull it apart to count the teeth cause im picking up my dana 44 for the front next friday, so i gotta find out if they are going to match up or not

the numbers i found are:
3a26
d2sw
4668a
65
3b22
dif
I dont know if this will do any good but if anybody can let me know what i have to do id appreciate it a lot [img]images/graemlins/grin.gif[/img]
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post #2 of (permalink) Old 07-27-2003, 11:48 AM
 
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Re: 9\" gear ratio identification?

Can't help you with your numbers, but, it is likely a 3.50 ratio very common.

Do you have the axleshafts in the axle? If so, if you can rotate the pinion end (either a yoke or flange there) and see the axleshaft ends move, you just need to count the number of times you turn the pinion end compared with the number of turns at an axleshaft end.

3.5 turns of pinion end to one full turn of axleshaft = 3.50:1

4.1 turns to 1 = 4.10/4.11, etc.
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post #3 of (permalink) Old 07-27-2003, 02:45 PM Thread Starter
 
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Re: 9\" gear ratio identification?

well after searching some more and coming up with nothing i decided to make some time to get it pulled apart i came up with a teeth count of 39-13 which comes out to be 3.00-1
and its an open carrier, so that isnt going to work

would any of you guys have an extra third member around that would have 4.10 and possibly a trac-loc?
ive already got my shock mounts and spring mounts moved and welded so if i could find a 4.10 member at a yard or on here id be set
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post #4 of (permalink) Old 07-27-2003, 05:15 PM
 
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Re: 9\" gear ratio identification?

If you can't find a used one around - I'd recommend Randy's R&P for a complete chunk at a decent price.
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post #5 of (permalink) Old 07-28-2003, 10:18 AM Thread Starter
 
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Re: 9\" gear ratio identification?

thanks, ill keep him in mind
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