77 cj5 transfer interpretation

can someone tell me what dana i have? and gear ratio is it 410? and a dana 30
the numbers on the ring and pinion are 52072 dana 33220 A3D6941-1
I need to know because mine are stripped

 

Count the teeth on the ring and pinion and divide them, thats your ratio, if they're too stripped to count thats pretty ugly

 

yeah i still need to know the model # like 30 or etc... but from different sites i think its a 30

 

when you look forward underneath the jeep, the dana model is cast in to the lower right flange.

 

yes but that number is C37671... again does not help me out any. im slowly geitnng more positive its a dana 30 with a 373 gear. a guy told me there the same in a new jeep up front. can i use a ring and pinion from a new jeep with a dana 30? i have a oppertunity to get those cheap

 

No You need a R&P from a CJ or YJ with a Dana 30. TJ Dana 30s are different then the older models.

 

so through what years, from what dana 30, will the ring and pinion fit my 77 cj 5. just cj's and yj's?

 

From the pic. tech section here on the site.. This will show you where to look for the axle make. On the ring gear the tooth count should be stamped into the side of it. If not its real easy just to count the teeth and divide it by the count on the pinion.

http://www.earlycj5.com/gallery2/v/picBank/album/axleid2.jpg.html

 

IIRC the later YJs don't work. But your best bet to not end up with a set that you can't use is to just use a CJ R&P set so 85 and older. I made the mistake of getting a set for a TJ and now I have a nice set of 3.73 gears that I can't use.

 

If it's a stock front axle then it's a Dana 30. YJ ring and pinion won't works since YJ's use a high pinion axle. You might as well open it up and count the gear teeth. You gotta take it apart to fix it anyway.

 

i know the ratio..... have known that . just not the model. i think its stock with a dana 30

 

Hey, just a thought ...the '77 had the 'new' rear axle....is toyvette81 asking about front or rear..there is a difference....