B-series cable trans help
 

I just picked up a cable b series trans but im not sure if its a si,gsr,or ls trans the guy sayss its a gsr but theres no stampings on or tags. how can i find out wat it is. i put 97 gsr clutch disc on it and its sloppy so i think is a 90-91 trans but not sure what to look for when i open it.

seriously man this was the first result when googling "gsr transmission identifier"
B-series Transmission Guide
next time search