realsquash
Well-known member
Does anyone happen to know if it's possible to put a 241C front case half on a 241J rear half?
I need a driver drop np241 behind a 4l60e, seems easy. I want a fixed output on the rear, too. I picked up a NP241J from a 2008 Wrangler with like 20,000 miles, it's like new, and they have a fixed yoke. I brain-farted and forgot the clocking of the tcase bolt patterns were different. The plan was to swap in the 27 spline input and 6-pinion planetary from a 241C (already have these parts) and bolt it up. Derp.
So my options are:
1) build (or buy but can't find) a clocking ring to correct the pattern and use the 241J as-is.
2) buy a really crusty old 90's 241C, rebuild, merge with 241J to get the fixed yoke output. Maybe use the 241J's guts to "rebuild" the old 241C.
3) buy/rebuild crusty 241C and swap the main shaft and retainer from the 241J? This might actually work, I don't know.
4) buy/rebuild crusty 241C and buy a way overpriced SYE.
5) keep 241J and buy expensive tcase adapter to 4l60e
How far up the beach are you? I will consider your offer.
I came up with another idea tonight - use a 4L80E tcase adapter, which is a couple inches shorter, and machine an adapter ring to turn the 241J the right way. I don't like the idea of a thin clocking ring, losing the spline engagement, or losing the centering pilot,either. I suppose at that point I should just machine a whole new tcase adapter.
I'm in Holland.
Aaaalrighty then.
No worries, I am going to make a clocking ring this weekend and just run it.
How are you converting the 23 spline 241J to the 4L60 27 spline? I don't think the sun gear is interchangeable between the 241J and the 241C. The 241J has a 4:1 reduction and the 241C has a 2.72 reduction.
Novak sells a output shaft for the 4L60 to convert it to 23 spline but that isn't a cheap option.