A little fine tuning and a lot of cross measuring and they were tacked in place.
On the old frame was 30 1/2" from the center of the front axle to the center of the cab mount so that's what I went off of. Lined up real close to the 4 inch measurement that is usually used.
After that I drilled the 2 Inch hole for the mounts and set the cab on the frame. The frame is currently sitting level front to back and the rear of the cab is on a Jack stand. I wanted to make sure the height was what I wanted before I made the rear ones. It looked kinda tall at this point.
I needed the front clip on to really get an idea for the height and it was easier to put the motor in first. As it sits currently the oil pan is 1 1/2 inches from the crossmember and with the carb level that puts the transmission pan flush with the bottom of the frame.
I'm not building a prerunner, but the roads my house get pretty rough sometimes.
This is where the 4 inches added to the front crossmember paid off.