I put these in my 82 fj40 a few weeks ago. Dual Odyssey 1200MJT's in stock tray location. Took the stock tray, flatend the ends, welded on some angle iron, welded the stock hold down back one the one end, coated it with Plastidip, made a top hold down(gonna make a different one when I mount the selnoid) and it fits in the stock tray location, nothing had to be moved, its not in the way of anything and looks stock, except now it holds 2 batts. I havn't done the wiring yet, but will use the same Wrangler stuff I used on my fj80, need to order alot of stuff.....I put duals in my fj60 as well(except one red top and one Orbital.
Don't laugh.....it's the 1st thing I ever welded
John H
Don't laugh.....it's the 1st thing I ever welded

John H