Gen 4 Camaro has the shortest joint style yoke, Sonoma has a short flat 4 bolt style flange so you can run UJ's or CV's & if you want to run a short coupler without suspension, B&J now make a Greek coupler part # BJ-SID.
A 32 spline Greek coupler will fit the GV but will probably be really tight & you might have to acid etch the shaft to make it work.
Sid.