That's one heavy case. For comparison an np241 weighs 92lbs and my atlas 2 speed is 110. When I was doing research it seemed like for my application it was unneeded, given my T-case is lighter than yours. I found more people complaining about issues due to the rear support than people having problems not having one. To me, it only seemed necessary in race or buggy applications.
But since you already have the second mount it's better to have it and not need it than to need it and not have it...
Have you tested the Nth degree with the cross members mocked up? On my jeep, it wasn't an issue since the transmission mount bolts would hit before the bar. But adding a rear I'm guessing would have required me to lift the case higher due to the MML angling the trans downwards.
No I just got the engine/transmission/t-case in right before time to stop for the night. I added a support for the transfer case to the Nth Degree skid before so I'll have to remove it.
Yes I've read mixed reviews about having or not having the rear support but with 150 lbs I feel better about having it.
Since my engine tilt isn't that much I don't think I'll have issues adding the second crossmember but will know more tomorrow. The transmission crossmember will be higher in the frame than the t-case one but I think they both will clear.
Here's the full write-up:
https://wranglertjforum.com/threads...on-cross-member-and-transfer-case-skid.34524/
I used JL control arm bushings at the frame that I picked up off Craigslist and hard mounted to transmission. I have an extra control arm you can cut up if you want the bushings. I'd be happy to mail it to you. I don't notice any extra vibes for me now that I finished up the new exhaust. I also have a set of autofab poly bushings
I have 2 GR universal crossmember kits so I don't think I'll need the bushings but thanks for the offer.
Aren't Poly bushings suppose to make more vibrations?