Gm Part Help Gr 4.380 2033275

Does anyone know what this synchro fits? I came across it but cant seem to find anything on line about it. Thanks

 

pictures do help

 

here you go

 

the group is 4.380 #2033275 Thanks -->Bill

 

oh, truck stuff.

Looks like New Process, wonder if it's a Mopar number, it does not show up in my Chevy truck book from 1969.

 

Thanks,, It has the chevy sticker on it with the group and number,, must be from the 70's, Thanks for looking

 

I finally figured it out 1964 65 66 67 68 69 70 71 72 73 74 Chevy Truck 4th and 5th spd clutch Synchronizer 280v 282v 285V