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Re: Factory 4x4 experts look at these pics!!
there are pros and cons with both setups.
Divorce mounted-
Pros- can be easier to replace, gives longer front driveshaft for less angle
Cons-more to go wrong with extra D\S and 2 extra U-joints, shorter rear shaft,heavier, middle shaft takes all the strain the drivetrain sees but isnt any stronger than front or rear shaft really leading to a common breaking point.
Married mounted-
Pros- thought to be stronger design without the center shaft taking strain from both axles, lower ride height is possible, longer rear shaft, less parts than divorced.
Cons-shorter front shaft can bind on lifted vehicles (or earlier trucks that sit higher stock), can sometimes be harder to remove and re-install thanks to seal and trans mount.
To me the SM465 is a bonus in that deal and I would be tempted to swap the whole setup in and get new drive shafts, sell the SM420-Divorced 221. My personal favorite is the SM465\NP-205 from later trucks but just because the 205 is bit stronger and parts are available easily.
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