Engine/Transmission (1994 - 1998) which hole to plug in pacbrake?

[vaicase]

the big one or small one?does anyone out there know?the plug fits the small one. pacbrake says the big one,i dont know. one is about 3/8 inch,and one is over half inch. has any one had this problem before?thanks

 

[McLaughlin]

According to the Pacbrake documentation the smaller hole should be 1/4 in and that is the one that should be plugged.

The documentation also stresses the hole should not be plugged unless you have 60lb springs. My truck originally had 30lb springs not sure about yours.