Rear Driveshaft size question.

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Audiowriter

Member
Joined
Dec 17, 2019
Posts
51
Reaction score
11
Location
Indiana
Ram Year
2012
Engine
6.7
I have a 2012 Ram 3500 4WD Crew Cab ST DUALLY (DRW).
I bought it used with 140,000 miles.
However, after spending almost 3 days trying to match up the 3 REAR MAIN driveshaft U-Joints for a DUALLY (DRW)-
Come to find out my driveshaft calls for SINGLE Rear Wheel U-Joints (SRW)
Is this normal or did someone put a different driveshaft in my truck at some point?
(I rebuilt both front and rear driveshafts using my home made horizontal hydraulic press =
A 1.5 ton bottle jack and a piece of a 20 inch wide "I" Beam.)
(Had to use a grinder to cut out part of the old Rear shaft joints...)

20211121_123642.jpg

20211121_123708.jpg

20211121_123652.jpg
 
OP
OP
Audiowriter

Audiowriter

Member
Joined
Dec 17, 2019
Posts
51
Reaction score
11
Location
Indiana
Ram Year
2012
Engine
6.7
I got them all done.
2 Moog's and 1 Spicer in the front axle (forget the numbers...)
The rear took 3 Spicer's 5-3206X
 

crash68

ACME product engineer
Staff member
Administrator
Supporting Member
Joined
Mar 20, 2016
Posts
10,760
Reaction score
16,863
Ram Year
2015
Engine
3.0 EcoDiesel
I wouldn't put it past Ram to use different driveshafts on the same truck layout in the HD trucks also. There are some 1500s that use a single drive shaft when the same truck cab/box layout along with gearing and engine was built with a two sections and a carrier bearing. Same goes for powertrain set ups, the 1500 Outdoorsman is supposed to have the BW44-45 transfer case but some of the '14 model year trucks were built with the BW44-44. (note this was long before the supply chain shortages).
 
Top