Counterpart C20 Cab Mounts - Observations and Question

[ItWillBeSlow]

All,

I recently purchased and installed a C20/4x4 cab mount kit manufactured by counterpart. I want to share a few observations, and ask if other had a similar experience or if anyone can correct a mistake I have made.

The kit only came with new rear bolts. Luckily my front bolts were in good enough shape to reuse.

The washers included in the kit only fit the rear cab mount, and the bottom of the front radiator support. They all have a small diameter hole (like the rear), whereas the front mounts have a larger bolt and washers from the factory. I had to clean up and reuse my washers in order to reuse the front mount bolts.

No instructions, and the replacements are not the same size and shape as the factory. After some figuring, you can get the gist of what is supposed to go where.

When installing the rear, using the new bolts, and factory floor mounted "nutsert" (if that's the right word), the threads on the new bolt or nutsert will not allow me to torque to 35lb. I lost tension by 30 lb which appears to be stripping the threads in the bolt. This bolt is slightly longer than the original, but I dont think this means much other than it sticks up through the floor more.

QUESTION: when instealling the rear, am I supposed to cut out the factory "nutsert" and use the washer and supplied nut? Considering this kit didn't include everything to do the job right, or any half-azz instruction, I am questioning if there is any right way.

Attaching photo of rear/front/radiator mounts for reference.