You guys got it nailed...the UBE's aren't what we consider a complex part by any means but ours are CNC cut/drilled to help take some of the guess work out. If you have the tools, by all means, build them! It's a part we've been making for years for various projects and after needing (like previously mentioned) a little more lift while wanting to ditch those u-bolts, it was a no-brainer. Our UBE's do have a middle rib which prevents the collapse of the UBE when abused...so it's a little different than a piece of boxed tube - but you could do that too. We've been working on complete solutions for the MJ (bumpers, stiffeners, sliders, etc) and the UBE's were a part of the plan from the get-go.
The UBE's are not application specific and for those of you looking to get some new spring pirches (and are looking to buy instead of build), we believe they're a viable option and worth consideration. The benefits of the UBE's are as follows:
1) You ditch those u-bolts so you have nothing below axle centerline
2) You can gain a small but safe amount of lift to compliment rear springs with less arch - less arch results in better flex
3) The upper plate has accomodations for the stock located bump-stop
4) You can stretch/shrink your wheelbase 1 or 1.5"
5) They will integrate with our soon to be released rear differential truss
As for the Y-Link issues with the MJ's, there was a time where we were cautiously concerned about the transmission mounts. We had learned the hard way that the XJ's weren't all the same and we didn't want to ship a part that wasn't right so we did ask a few questions. If we had access to a larger number of MJ's at the time we might have made an educated guess but we don't like operating like that because we know how frustrating it is to get something that doesn't fit. At this time we do now offer an MJ only belly pan that ships will all accomodations for an MJ. There are a few differences from the XJ kit and since they've been ironed out, we're confident in the application.
If you have questions, feel free to give us a call at the shop. :)
Matt
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