New EnergySuspension polyurethane cab mount bushings.
It turns out I didn't need them after all. I found the noise/squeak/grinding somewhere else.
Included is a NEW, unopened kit for replacing the six body mounts underneath a 1st Gen Tacoma ExtraCab. Parts bag is unopened from the factory. Includes instructions.
I want $75 bucks for them. I'll pay shipping. You save about $10 bucks. But hey, they're new, and ten bucks is ten bucks.
Part number 8.4103G. Look them up on their website and see if they'll fit.