Removing Motor Mounts 1974 C10

[epfatboy]

Not sure how this worked out for the OP but I got mine out. It's the getting back in I worry about!

I think the Driver side is going to be fine but the pass side has the fuel line and brake lines in the way so that is likely to add to the challenge.

2 tricks I learned which I might need to use:
little heat and a custom bend on a yard sale box wrench to hold a flange nut
or
Tack weld a small piece of steel you can bend to the nut and use it to hold it in place