My Rear End...

[unclebilly]

It is my understanding from this message board that Big Bad Dodges like mine came with Dana 60 rear gears...

Under the hood, my gear ratio is claimed to be 3. 5 and the rear end is a Spicer 70.

I have not gotten around to jacking up the old beast and checking if it had a limited slip or not yet.

I guess what I am wondering is, is my rear end normal? Likely is it a limited slip? Shouldn't it be 3. 54 : 1 gears?

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91. 5 CTD 4X4, 5" Stacks, Tweaked Pump, 33" Boots

 

[Shrimpy]

Look under the hood and on the white tag that you are getting the axel ratio info from it should say "limited slip" or Power lock axel", or something along these lines. If not there crawl under the truck and on a piece of metal located under the bolts that hold the cover on will be a tag. This tag will show the gear ratio and if it has an "L" after it you have a Locking or Posi rearend. These are the only way to tell without removing the rear cover.

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92 Ext. Cab, Auto trans. , 3. 54 Non-LS, Isspro Tach, 16 cm housing, PW injectors, no name 3 Gauge cluster, 230,000+ miles, straight pipe, old and abused but still running strong!!!!

 

[Lil' Dog]

I would think that all the Diesels came with the spicer 70 rears, the front diff may be a 60 hybrid from what I have dug up.
Shrimpy is right about the tag on the diff telling the ratio and the L designation. In 4WD the rear ratio will be the 3. 54 and the front around 3. 5 even. This is true in all 4wd to have the front end pull instead of being pushed around by the rear.

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Jason Hoffman
Lil' Mack - 89 D250LE 5 Spd 3. 54 LSD Reg Cab. K&N,"tweaked pump", BD Injectors, Banks Pyro/Boost, 3. 5" Exst tail section straight. E&M Custom seats. Bosch H4, PIAA 80W/80W HdLites. 100W Drv,55W Fogs.
237,500 miles (380,000 Kms) 7850 Hrs. Cummins Power Booster member.
The Original Turbo Diesel

Lil' Mack Pics 07-00

 

[drives mopars]

U CAN SPIN TIRES AND SEE WHICH WAY THEY GO. FOR LTD SLIP OR NOT DIFF DIRECTIONS MEAN
NO POSI