Tomorrow we are planning on welding the rear mounts for the lower bars to the rear end housing so tonight I went to the shop to get a jump on it. We needed a way to hold the two brackets totally square to the housing and to each other, so I made up a simple jig that will hold them in place while welding.
I didn't want to waste any good steel so I used a piece of 3 x 5 angle iron we had and then I cut up two pieces of 2 x 4 box tubing for the parts that go inside each bracket. The inside dimensions of each bracket we made is just a hair over 3 inches so the 3 inch tubing will keep it totally square. I clamped it all to our welding table, squared it up, and put some tack welds on to make it one piece.
We can also use the same jig to hold the front brackets that go on the front end of the lower bars until we get them welded onto the frame. That way the front and rear mounts will be exactly the same distance apart eliminating any bind or misalignment.
I also squared up the rear end under the car in the exact position it will end up, then slid the jig and brackets under for a trial fit. A couple of blocks of wood shoved the jig and brackets tight against the rear end, ready for welding. Tomorrow we will set the yoke angle at 3 degrees up and weld it all up.
Here are some pictures from tonight.
Don
Here is the rear end all squared up to where it will be in the frame.
This is the simple jig I built.
Jig with brackets clamped in place.
The whole thing positioned under the rear end, ready to weld on.
And a side view of the bracket.