36mm.
On the top of the truck
I'd need to know if you had a solid front axle or a double wishbone independent front suspension in order to answer this.
The front axle itself does not need to be removed.
103 ft/lbs
36 mm. Torque 103ft pounds.
No you can not. The front wheel bearings will come apart and fluid will run out of the front differential.
Very carefully..
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.
it's 36 mm Deep socket six point
drawing for bearings and seals of front differential axle
If you are talking specifically about the differential, then the answer is yes, but only if the two trucks have the same model of axle, and you also switch the axle shafts. If you are talking about the entire front or rear axle, then this is also possible. All straight front axle 4 wheel drive Chevy truck front axles can be interchanged (some will need conversion u-joints in the front driveshaft to connect). Also, 73-87 (and 88-91 blazer and suburban) rear axles can also be interchanged, with a caveat: 1 ton trucks have different rear axle spring pad spacing, and the 1 ton rear axles will not fit 1/2 and 3/4 ton trucks without cutting, moving them, and re-welding.
look under the truck and then look in the front theres the axle its that esay