More pictures... Got this done 2 days ago, but was too tired the first, took last night off.
4/10 of the body mounts, ready for primer. Already had the other 6 on the X. They're fully welded steel, coming in at 3.5" overall. 1/8" x 3" tube, 1/4" plate top and bottom, with 1/8" x 1/2" ID center that the bolts run through. Found out that's likely the main expense of the 883 BL. I drilled all the mounts out and ran with standard bolts, locknuts, and fender washers because otherwise I was looking at about $6-7 per bolt in the metric side. Got away instead for about $45-50 in total.
Right here is where you can see the oil pan/diff issue. Don't have any pics of the improved clearance from removing the diff, but I'll get some when I put the engine back to do the mock-up for the engine mounts.
Speaking of which, I've removed the stock engine mount points. Demo saw, and about 20 minutes later I had em out. I drilled out the 300 mounts to accept the 4.0 mounts, they seem sturdy enough. Here's the issue I'm going to run into with the mounts though, right where the 300 engine mounts are, is right above the crossmember with the steering cylinder. There's enough clearance above it, but the frame mount is going to be a bit tricky to fab. Thinking 1/4" x 2" x 2" square tube on the front and rear of the crossmember with a 1/2" x 3" x 3" angle that the mounts will bolt to. Probably some extra bracing as well, wherever I can fit it.
Got sorta lucky with my oil filter issue... Was thinking I was going to have to remote it, buuut, it turns out the 90 degree oil filter assembly on the 4.0 is the same style filter, threads, almost everything. Here's the catch: I pulled out the filter insert on the 300 and it doesn't have the same thread as the filter where it inserts, it's a 1-1/16" down to the 3/4". One of the guys at my job claims to have the tap and drill bit I need to hollow it out and tap it, which will be great. It'll be sort of like a oil filter insert heli-coil. Pics of that when I get it finished, hopefully next week. If you guys don't hear from me again for a bit, it's because I'm busy fabbing stuff up. Til next time, gang.