Should be a 35mm.
Front axle nut should be a 35mm.
36mm
103 ft/lbs
You don't, you replace it.
The question is to vague, more details please.
I would doubt it. The gears are usually dimensionally different in the front and rear axles. NO!
That switch is screewed into the top of the transfur case that's bolted to the rear of the transmission.
Sure... you pull out the axle shafts, and its disconnected.
You can find a 1989 Chevy front axle diagram at most Chevrolet dealerships. Most local libraries will have Chevrolet service manuals with the front axle diagram.
The fuel filter is located on the driver's side. Inside the chassis rail about a foot and a half in front of the rear axle.
You'd have to look at the RPO code in the glove compartment to determine this, as there were a couple different options. The gear ratio for the front and rear axle will match.
The front axle nut on the 4+4 should be 35mm. You can use a 1 3/8" deep socket but it will fit tight. On my 2000 Chevy s-10 the Nut was 36MM. The socket I bought at advanced auto says right on the package for GM axle nuts.