[136679ss]

got a little surprise this past week. purchased what were supposed to be a new unused 3.55 richmond set for a 12 bolt chevy. when I opened the box the gearset appears to be unused, but with 1967 dated GM 3.55 gears. part numbers pinion:3853008 dated 8/67 11-39-GM, and ring : GM 3853010 11:39 dated 9/67. Now I know what a new rich gearset goes for, but these appear to be never used NOS GM 3.55's. I still have every intention of installing them in my velle after I come up with a posi for it, but am just a little curious what they might be worth. Any input would be appreciated, and thanks in advance Jason.

 

[von]

If they are a mated set I would say LOTS. More than any new aftermarket gears for sure. 3.55's aren't available from any aftermarket mfr and these are new GM. It doesn't get any better than that. Couple that with the fact that 3.55 was the std ratio in many Chevy muscle cars and the high demand for that ratio today. If not a mated set they are worth next to nothing IMO. That's the big question, how can he tell if they're a mated set? If you go by the date on each it doesn't look good.

 

[78 BIG BLOCK]

hi most gear sets have a number on both r&p that are ecthed on them see if are the same, on ebay there were a set of 3.36 that sold for $507.00 about 8 months ago good luck

 

[cobra2411]

Von, what do you mean 3.55's aren't available? Richmond P/N 4900951... At Summit for $195. 3.36 (3.31)'s aren't available, only 3.42's.

David

 

[von]

You're right. At least they're listed in the Summit catalog. I didn't realize they're now available.

 

[big gear head]

I sold a set of NOS 3.31 gears about a year ago for $275. I probably could have got more for them. Are you sure that they are dated a month apart? Could you be reading the number wrong? I guess one could have been cut on the last day of Aug. and the other on the first day of Sep.

 

[136679ss]

I sold a set of NOS 3.31 gears about a year ago for $275. I probably could have got more for them. Are you sure that they are dated a month apart? Could you be reading the number wrong? I guess one could have been cut on the last day of Aug. and the other on the first day of Sep.

That is my guess too, Freddie. Cant see too many of these around with a 67 date that look like they were just cast unless they came together as a set. Thanks for your input. the pinion actually says 67 8 then part number unless the 8 is a component of the part number as there is a dash after it. I didnt think so because there is a good deal of space between the 8 and the dash immediatedly followed by 3853008? like this
67 8________-3853008-11-39-GM- What do you think? Jason.
the underline only represent space not broaching as the forums dont support spaces greater than 2