I dont know how to tell which rear end i have in my 89 ramcharger i took took the tag off and all it has on it is 3.2
Most dodge fullsize pick ups came with a 9 1/4 rear diff. all8 3/4 and 9 1/4 diffs have a large rubber grommet in the cover all dana 44/60/70s have a pipe plug. this should narrow it down for you.
First, determine how many bolts are on the diff. cover and search a mopar differential site that discusses this topic.....i typed in 3.2 -no results- youd'd have better results looking it up by amount of bolts....then the 3.2 might make sence....there should have been more numbers and a letter or two.....good luck...hope this helps
There will be a part number stamped into the rear end. The dodge dealer can look it up. Also, if it's the stock rear end, the vin number is all you need to tell the dealer.
SOURCE: how to tell which rear end i have in my 89 ramcharger
sounds like someone has either modified/replaced your tag or replaced the diff
the only other way you can tell now is to pull the cover and measure the ring gear
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