What is the front and rear axle sizes on a 2001 harley ultra classic?

Question edited for clarity.
Question moved to make model category.

https://www.google.com/search?q=2002+Harley+Davidson+Ultra+Classic+bolt+torques

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Front caliper -

Brake Pad Pin = 75-102 INCH lbs.

Caliper to Fork Bolts = 28-38 FOOT lbs.

Tighten the rear axle nut to 60-65 ft.-lb. (81-88 N•m).
Front axle nut
FXST, FLSTC, FLSTF,
FXSTB and FXSTD 50-55ft/lbs - 68-75 NM
FLSTS and FXSTS 60-65ft/lbs- 81-88 NM
Brake disc bolts
Front wheel 16-24 ft/lbs- 22-32nm
Rear wheel 30-45 ft/lbs- 41-61nm

Do you made any change on rear sprocket or front drive sprocket recently?

Front axle nut torque 70-75ft lbs, rear axle cone nut first torque 15-20ft lbs, second torque 95-105 ft lbs, front disc torque 16-24 ft lbs, rear disc torque 30-45ft lbs.

caliper torque 28-38 ft lbs,front axle nut torque60-65 ft lbs. front brake rotor torque 16-24 ft lbs. straight from harley manuel.

Specifications: Engine Type: 1449 cc, 4-Stroke, Air Cooled, V-Twin
Engine Bore and Stroke: 95.3 mm x 101.6 mm
Valves 2 valves/cylinder
Claimed Horsepower: 67 hp (50 kW) @ 5200 rpm
Maximum Torque: 110 Nm (81.1 ft. lbs) @ 3100 rpm
Transmission type: 5 speed
Final Drive: Belt

Tire - Front: 130/90-16
Tire - Rear: 130/90-16
Brakes - Front: dual 292 mm discs with 4-piston calipers
Brakes - Rear: single 292 mm disc with 4-piston calipers

Sizes can vary depending on what has been done to the bike.
Ride safe and loud pipes save lives.

It's going to be about 1000 pounds. Don't forget your tires have their own load rating as well as the front and rear axles.

remove two tiny torx head screws and pull them out of the caliper
remove old pads
clean and push piston(s) into caliper

easier with wheel off, or axle pulled out so caliper can "float"
a toothbrush work well with some brakecleans