85-140 will work.
Your best bet is to have someone do it for you. But if you insist then I insist that you buy a Haynes manual.
The rear outside axle seal on my 1968 Chevelle has on it's outside face, the number 3832418. I am not sure if GM uses this same number for their parts inventory, but the manufacturer of the seal does.
Depends on the rear axle the car has. 10 bolt is most likely 8.25" for a 1968, but 8'5" is also possible. 12 Bolt is 8.875".
With a 3.73 axle ratio and heavy duty oil & transmission coolers, the Towing Capacity is 6,500 lbs in the 4WD model.
The Chevrolet suburban 1500 axle is interchangeable with the Chevrolet Silverado 1500 axle. The manufacture year of the vehicles should be the same.
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.
Probably the U-joints.
221 ft
It is on the top of the passenger axle tube, between the front differential and the passenger side frame rail.
The standard rear axle width, on your 1995 Chevrolet Z 28, is four inches. Some limited models were equipped with a five inch axle width.
Maybe but it depends upon what you mean by "rear end". Do you mean the axle and axle housing or the body of the truck? Keep in mind a 2000 Silverado is a different generation than a 1997.