That sidecase is getting torn off again and everything blown out. It's just on there for looks right now.
what i did was cut the pieces to exact length, cut the pivot tubes, then measured. Then cut the carrier housing and put it on there, sit on a measured level ground, then put the level inside the carrier to make sure it was level before I tacked it into place. Then stuck a level back on everything to make sure again. Then cut a piece of 1x2 and measured it to make sure it was square, and leveled up the 1x2 piece Tacked it into place, and checked square again. I made sure there was at least 1/16th" hangover on each side of the carrier for a bead to lay around that. Then i cut another piece of 1x2 for the rear, a couple of inches away from the carrier for gusseting. Welded everything up, and before i welded the pivot tubes, I put in old bearings and plastic inset and slid a bolt thru that to make sure it was lined up. Then tacked that while it was on the 4 wheeler to ensure the pivots still worked. Then took it off the bile and welded everything up. All of this was done with the motor on so I would have proper alignment between pivot points. Grinded down some welds with a flap disk to make sure the welds were smooth. Didn't take off too much tho so i would have plenty of weld left on the joints. I took a hole saw and cut out recessed places for the shock mount and drilled the holes big enough to get a bolt through. Took some cast iron pipe and welded inside the shock mount holes to enclose it and make sure a socked would fit into it to change out the shock. Stuck the shock on and looked at it. Oh...I took the old swingarm and looked at the shock mount and compensated for that and marked it and put a straight line with a square. Found center and drilled thru the first layer with the hole saw on na drill press.
Tomorrow is the gusseting and securing the brake caliper plate. After this weekend I'll powder coat it. Also putting some tubing over the bolt holding the shock on to stabilize it more. Then cutting the old chain guide plate off and welding it on too. Still got some more to do to it...