i have the 4.0 L auto trany is there any t-cases i can swap out that will work like dana 20 or dana 300 i need to clock it lower so it can clear my tranny x member wont interfre with my front drive line 

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As far as i know most build a new mount so the front driveshaft clears, that what i plan on doing when i get that far. Even with a tranfercase swap u will still have to re-fab the mount.
Also how did u fab your steering shaft. im trying to find the right size joint that goes into the steering box, but have not found the correct answer yet . i think it is 11/16 36 spline but not for sure.