Trade my Borg Warner T-5 for a FRPP World Class t-5?

Just because it your uncle doesn't mean it in good shape.

Why would you trade for the same tranny if you just got it rebuilt.

A borg warner t-5 is a tremec t-5. Only difference is your t-5 from 87 may have a 3.35 first gear which they dont come with anymore. all new tremec have a 2.95 first gear.

does your uncle know this, maybe he's trying to pull one over on you.

I'd just keep yours