165432 is the firing order.
18436572 is the firing order going counterclockwise on the distributer cap.
gmc jimmy1989 firing order spark plugs
The firing order should be 1-8-4-3-6-5-7-2.
Yes, Dexron ll is the correct fluid for your 1974 GMC.
Firing Orders It depends on which engine. If we assume you have a 5.0 or a 5.7, the firing order for sbc and bbc is 1-8-4-3-6-5-7-2 in a cw rotation.
the firing order for a 1992 gmc sierra c1500 v6 4.3 liter is 1-3-5 drive side front to rear 6-4-2 passenger side front to rear