Mustang V6-3.8L VIN 4 (1998)
12. Lubricate fifth speed gear splines with petroleum jelly and position on output and fifth gear drive shaft. Using a press and a capped length of pipe,
31.75 mm inner diameter x 356 mm (1-1/4 inch inner diameter x 14 inch), press fifth speed gear onto output and fifth gear drive shaft.
13. Using snap ring pliers, install fifth speed gear snap ring.
14. Install third speed gear bearing spacer and bearing as an assembly onto output and fifth gear drive shaft.