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Can I put a newer (33-38) 3 speed in my 31?

I don't have an absolute answer but first am curious why you limited the possible replacement units to '33 thru '38 when the new 3-speed synchro that came out to replace the 4-speed crash-box and the 4-speed synchro was introduced in 1932, first in the 900 Light Eight and Twin Six and as a running change to the Standard Eight and Eight Deluxe. As the substitution of the new 3-speed unit was a running change I would expect they would interchange.

If your 31 had the 4-speed synchro, I'd be awfully tempted to NOT replace it.

Thanks, I have the 4 speed NON sync. Now where to find a 3 or 4 speed w/sync??

Well, the 4-speed synchro units are pretty uncommon and I suspect some folks who have them don't even recognize it as such. And it's just synchro on the top 2, 1st is still a VERY low low, almost never needed unless you're pulling stumps or moving a house. Pretty unlikely that you' find one easily.

But the 3-speed synchro unit should be relatively easy to find - have you asked Kanter if they have one up in their attic? They are an incredibly robust unit, given proper lube and not abused they should very easily go the better part of 100,000 miles (or more) with no problems. Should it need service, all the bearings are again available, if you need gears you'll probably have to settle for used ones. Synchros are generally adjustable but if they are beyond that, some Packard folk in Switzerland have reproduced them.

Why do you want to get rid of your 4-speed? Having trouble learning the technique of double-clutching? It takes a while to master it but once you get it down pat, it becomes second nature.

G'day rctraylor,
to PackardInfo.

I invite you to include your '31 833, with or without a swapped in transmission, in the Packard Owner's Registry.

Driving it is no problem, just looking at options if & when it might need work. Thanks again.

OK I sure will.

for including your '31 Standard Eight Coupe in the Registry.

Viewed a rerun of Chasing Classic Cars last night where Wayne went up to Maine to buy a 31 Packard Super 8 Roadster 840. To verify it was authentic his friend and Packard expert told him one of the things to look for was a 4-speed transmission. It was a beautiful and authentic car and Wayne bought it along with a super nice Model A Ford.

JWL