The 3-speed with overdrive I once owned had a reverse lock-out on it. I'm wondering if you need to lock out the overdrive when in reverse. Not sure how you would force that always to happen.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...