It's a single wheel. I guess maybe it's a 350 then? I don't know how the dodges are labeled.
Tag on the rear dif says 3.54??
1st Gen. Dodge/Cummins trucks are year-models 1989 to 1993.
The best ones of all are the NON-I/C engines prior to 1991.5 = better turbo set-up, larger injector housings, and by far the best fuel-mileage achievers of the bunch.
Mid-year 1991.5 brought the addition of an inter-cooler, along with an O/D in the automatics, along with a change in the turbos that brought about the nick-name "lagmaster".
All 89-93 Dodge/Cummins 4x4s, both SRW and DRW have a genuine king-pin Dana-60 front-axle and a genuine New Process NP-205 transfer-case.
The 3/4-ton D-250 and W-250 SRWs have a "hybrid" Dana-70 rear that is not really a true 70, but shares some portions with the old 60s.
The 1-ton D-350 and W-350 DRWs all have the real deal Dana-70.
Available ratios were 4:10s, 3:55s, and in the earlier 3-speed automatics several even have 3:07s.
What is the asking price ??