Reproduction 2nd - 3rd synchronizer assembly for '55 - '63 3-speed trans?

[G B.]

The 2 - 3 synchronizer in my '57 3-speed is worn and needs replacing. I believe both the original GM part number, 3733889, as well as the replacement part number, 3774720, have been discontinued for years. Is there a reproduction or aftermarket substitute available anywhere?

There's an NOS 3774720 offered on eBay right now for ~$400, but that seems steep to me for a 3-speed repair part. Maybe I should just put in a 4-speed.

[G B.]

Alrighty then!

I guess not.

[Dennis C.]

Re: Reproduction 2nd - 3rd synchronizer assembly for '55 - '63 3-speed trans?

The 2 - 3 synchronizer in my '57 3-speed is worn and needs replacing. I believe both the original GM part number, 3733889, as well as the replacement part number, 3774720, have been discontinued for years. Is there a reproduction or aftermarket substitute available anywhere?

There's an NOS 3774720 offered on eBay right now for ~$400, but that seems steep to me for a 3-speed repair part. Maybe I should just put in a 4-speed.

Try Larry at D & L Transmission, 631-351-4837.

[G B.]

Re: Reproduction 2nd - 3rd synchronizer assembly for '55 - '63 3-speed trans?

Thanks for your reply, Dennis. I did some business with Larry back in the nineties and found him thoroughly honest.

I just bought an allegedly new-old-stock aftermarket synchronizer on eBay for ~$200. Yowzah! https://www.ebay.com/itm/36354866151...8AAOSw8TNhR0Qr

I did find an NOS GM #3774720 in Sweden for around $430. Also, a Russian phishing website listed an NOS 3774720 for $65... but I passed on chasing that bargain.

Jerry