Ford 8.8 specs:
Weight (complete assembly w/ brakes etc.): 174 lb.
Drivers side Ford brake hose #: F5TZ-2282-A
Passenger side brake hose #: XL2Z-2282-AA
Bolt size (U-joint flange to yoke) is: 12 x 1.75 x 30 mm
Axle shaft Strength and output torque rating by Warn and 4 Wheeler
(thanks joe and Chile99.)
The axle shaft strength (tested by Warn Ind.) is as follows:
F8.8= 6,500 (lb. ft.)
D44= 4,600-5,000 (lb. ft.)
D35C= 4,000-4,300 (lb. ft.)
COT: Continuous output torque rating
MOT: Maximum output torque rating
Numbers from January edition of Fourwheeler, page 60.
Dana 35 rear axle COT: 870 MOT: 3480
Dana 44 rear axle COT: 1100 MOT: 4460
Ford 8.8 28spline COT: 1250 MOT: 4600
Ford 8.8 31spline COT: 1360 MOT: 5100
Dana60 semifloat COT: 1500 MOT: 5500
Measurements:
O.D. of tubes: 3.250".
Tube thickness: .250" (some are .188”!)
Ring gear diameter: 8.800".
Ring gear bolts: 7/16" dia. (qty. 10).
Pinion diameter/splines: 1.625 / 30.
Axle shaft/splines: 1.320 / 31.
Rotor thickness (where it mounts to axle is .250").
Overall width* 59.625" (the F8.8 is .950" narrower then a TJ Dana 35).
Hole diameter for ABS sensor in top of housing: .811".
Centerline of housing to C/L of pinion difference is 3.875" toward the P/S.
Pinion offset: P/S to C/L of Pinion, 27-3/4" (no rotor on axle), D/S to C/L of Pinion, 31-5/8" (no rotor on axle). (this measurement is 2.5" more offset to the P/S then a TJ Dana 35).