Florrie & Allen Bachelder had this to say:
>BTW, I now have occasion to swap back to the '73 O/D tranny... Amongst it's
>other faults (due to rebuilder's oversight), unlike a proper '76 O/D, this
>one shifted into O/D in ANY gear. ' Was quite perturbed one day as I wound
>it out in 2nd and it upshifted at about 35 mph. The lockout switch was
>faulty. ' Would have cut a hole in the tunnel to replace it but the tranny
>has other problems and has to come out anyway.
Hmmm, I can reach the lock-out switch from the tunnel opening in my 66.
This is an LH OD tranny, so I did have to open up the hole lengthwise.
But I'd give it a try before pulling the whole rig... unless, as you say,
it has other overwhelming problems.
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the red one with the silver bootlid.