SM420 TRANSMISSION REAR SEAL FITS '48-'67 GM 4-SPEED WITH 10.5" CASE 1 PTO (SM420-45) TPD PRO-LINE $9.88 $13.99 Add to Cart
SM420 TRANSMISSION REBUILD KIT FITS '48-'67 GM 4-SPEED WITH 10.5" CASE & 1 PTO (BK108) TPD PRO-LINE $228.77 $269.95 Add to Cart
Sale SM420 TRANSMISSION GASKET KIT FITS '48-'67 GM 4-SPEED WITH 10.5" CASE 1 PTO (250-55) TRANSTAR $19.88 $17.77 $27.95 Add to Cart
SM420 TRANSMISSION 3-4 SYNCHRO RING FITS '59-'67 & SOME '48-'53 GM 4-SPEED TRUCKS (WT250-19C) TPD PRO-LINE $14.77 $23.95 Add to Cart
SM420 TRANSMISSION SMALL PARTS KIT FITS '48-'67 GM 4-SPEED WITH 10.5" CASE 1 PTO (SP250-50B) TPD PRO-LINE $68.77 $79.95 Add to Cart
