BW T-10's also have the reverse shifter shaft on the tail housing. I believe the Muncie has 7 bolts on the side cover,the T-10 about 9 or 10. Muncies are all aluminum,all have the traditional GM manual bolt pattern and are 21 inches long from the front of the case to the tip of the tailhousing.Maybe some Vette Muncies had the speedo gear on the right side? Some T-10's are all aluminum, some are cast iron.There is only 2 basic ratios for the Muncie, a 2.20 and 2.50 something first gear.T-10's came in a variety of ratios and bolt patterns.
