R 2500 P/U 2WD V6-262 4.3L (1987)
![background image](/gmc/r_2500_p/u_2wd/v6-262_4.3l/Page-1094001.png)
Mainshaft: Specifications
Isuzu M-150 (77.5 mm) 4-Speed
Reverse gear to mainshaft nut ................................................................................................................................................................................. 95 ft. lbs.