I have a pair of rams. The info I have is what I can read off the tag that is bolted to the rear axle
1996 V10 5 speed 5207 0239 LS
2001 Diesel turbo 6cyl
it has 2 rows of info. Top 52069458 A (might be something behind the A but I can not read it)
second row 3 54 606707- (appears to have something behind the - but I can not read it either)
thanks for ya alls help. if I need to provide more info, just let me know

 

First one is a Dana 80. LS designates limited slip. (trak lok)

Second one is a D70.

 

Were the older drum 80's true 80's across the board? Our '02 CTD is an 80 pig with D70 outers, wb hub, wheel seal, discs etc

If you're ever buying wheel seals from O'Reilly's site watch out because it'll list a wheel seal for the D80 but you need to know you're actually shopping for a D70 once you're at that point on the housing

 

I think the rears behind the 8.0, and diesels, with manual trans, were actual D80's. The D70's behind those engines with autos, might have been D80's with D70 outers. Dodge did some strange stuff...... and this is one of those instances.

 

can you tell what gear ratio they are from that?

 

First one: Theoretically, that was in 4.10 gears.

Second one: 3.55 with anti-spin diff. (supposedly.)

 

Thank you for your help!

 

Look at the sticker under the hood, It will say what rear and ratio you have. Can also look up the BOM#.
https://www.differentials.com/differ...ion-work-page/

 

one has all stickers removed and all Dodge signs
other said 4.0/4.1 dana 80 limited slip
being im not a truck guy, not sure what that meant, so saught education