My vote is for worn dogs on the high gear / main drive.

My GTS is a 4 speed car and my 2nd gear pops out sometimes on deceleration. I know it's worn, but the car hasn't gone 10 miles since 1993....... Not high on my priority list to fix at this time

I run a 4 speed in the Cuda, but it's a Jerico, an 833 wouldn't live in that thing.

-Dave