M1008 rear axle

[sht2kll]

Howdy all: Is the rear axle on the M1008 a Dana 60? Can anyone tell me what the torque on the Pinion shaft nut is? I have to change the seal, it is leaking profusely. Thanks Tom

 

[4bogginchevys]

14 bolt corporate....not right off hand, the spec is probably in the tm's under the resourse tab, I go as tight as I can....dont take my word for that......welcome to the site!

 

[Cucvnut]

its the 10.5 inch 14 bolt full floater NOT 14 bolt 9.5 inch semi floater

 

[acmunro]

One other tip I would make sure your vent line is clear. The end has a plastic cap make sure it wiggles around, the hose is clear, and the steel tube that enters the axle casting is clear. I have seen the vent where it enters the housing rust/plug completely shut and the pressure has to exit the axle somewhere - usually the weakest seal. Good luck.

 

[kenny]

[FONT=Arial, Helvetica, sans-serif][SIZE=+2]Here is every thing you would ever want to know about a GM 14bolt rear end[/SIZE][/FONT]

Hope it helps you


[FONT=Arial, Helvetica, sans-serif][SIZE=+2]GM 14 Bolt Specs[/SIZE][/FONT]
[FONT=Arial, Helvetica, sans-serif](all data for SRW truck 14 Bolt axle - others may vary - see table on "different 14 bolts" below)[/FONT]
[FONT=Arial, Helvetica, sans-serif]Pinion Bearing Preload[/FONT]
[FONT=Arial, Helvetica, sans-serif](Inch lbs) [/FONT][FONT=Arial, Helvetica, sans-serif]25 - 35 (new bearings)[/FONT]
[FONT=Arial, Helvetica, sans-serif]5-15 (reused bearings)[/FONT]
[FONT=Arial, Helvetica, sans-serif]Preferred Backlash[/FONT]
[FONT=Arial, Helvetica, sans-serif](.001 inch) [/FONT][FONT=Arial, Helvetica, sans-serif]5 - 8 [/FONT][FONT=Arial, Helvetica, sans-serif]Ring Gear Bolt Torque[/FONT]
[FONT=Arial, Helvetica, sans-serif](Foot lbs) [/FONT][FONT=Arial, Helvetica, sans-serif]120 [/FONT][FONT=Arial, Helvetica, sans-serif]Bearing Cap Torque[/FONT]
[FONT=Arial, Helvetica, sans-serif](Foot lbs) [/FONT][FONT=Arial, Helvetica, sans-serif]135 [/FONT][FONT=Arial, Helvetica, sans-serif]Pinion Nut Torque[/FONT][FONT=Arial, Helvetica, sans-serif]Tighten as necessary to obtain correct preload[/FONT][FONT=Arial, Helvetica, sans-serif]Pinion Bearing Retainer Torque[/FONT]
[FONT=Arial, Helvetica, sans-serif](Foot lbs) [/FONT][FONT=Arial, Helvetica, sans-serif]:65 [/FONT][FONT=Arial, Helvetica, sans-serif]Diff Cover Bolt Torque[/FONT]
[FONT=Arial, Helvetica, sans-serif](Foot lbs) [/FONT][FONT=Arial, Helvetica, sans-serif]35[/FONT][FONT=Arial, Helvetica, sans-serif]Axle shaft flange Bolt Torque[/FONT]
[FONT=Arial, Helvetica, sans-serif](Foot lbs) [/FONT][FONT=Arial, Helvetica, sans-serif]115[/FONT][FONT=Arial, Helvetica, sans-serif]Spindle Nut Torque[/FONT]
[FONT=Arial, Helvetica, sans-serif](Foot lbs) [/FONT][FONT=Arial, Helvetica, sans-serif]50[/FONT][FONT=Arial, Helvetica, sans-serif]Carrier Adjuster Ring Lock Bolt Torque[/FONT]
[FONT=Arial, Helvetica, sans-serif](Foot lbs) [/FONT][FONT=Arial, Helvetica, sans-serif]20[/FONT][FONT=Arial, Helvetica, sans-serif]Pinion Assembly Bolt Torque[/FONT]
[FONT=Arial, Helvetica, sans-serif](Foot lbs) [/FONT][FONT=Arial, Helvetica, sans-serif]65[/FONT][FONT=Arial, Helvetica, sans-serif]Axle Shaft Spline Length[/FONT]
[FONT=Arial, Helvetica, sans-serif](inches) [/FONT][FONT=Arial, Helvetica, sans-serif]2.165" total[/FONT][FONT=Arial, Helvetica, sans-serif]Axle Shaft Engaged Spline Length[/FONT]
[FONT=Arial, Helvetica, sans-serif](inches) [/FONT][FONT=Arial, Helvetica, sans-serif]short side 1.418" [/FONT][FONT=Arial, Helvetica, sans-serif]Axle Shaft Engaged Spline Length[/FONT]
[FONT=Arial, Helvetica, sans-serif](inches) [/FONT][FONT=Arial, Helvetica, sans-serif]long side 1.569"[/FONT][FONT=Arial, Helvetica, sans-serif]Axle Tube Dimensions[/FONT]
[FONT=Arial, Helvetica, sans-serif](inches) [/FONT][FONT=Arial, Helvetica, sans-serif]3-3/8" x 0.5" thick[/FONT][FONT=Arial, Helvetica, sans-serif]Spring Perch Span and Width [/FONT]
[FONT=Arial, Helvetica, sans-serif](inches) [/FONT][FONT=Arial, Helvetica, sans-serif](1980 1 Ton 4x4, SRW, non Cab and Chasis) 42.5" x 2.5"[/FONT][FONT=Arial, Helvetica, sans-serif]Axle Shaft Length[/FONT]
[FONT=Arial, Helvetica, sans-serif](inches)[/FONT][FONT=Arial, Helvetica, sans-serif]Right 37-5/8"[/FONT]
[FONT=Arial, Helvetica, sans-serif]Left 31-5/8"[/FONT][FONT=Arial, Helvetica, sans-serif]Axle Shaft Diameter[/FONT]
[FONT=Arial, Helvetica, sans-serif](inches) [/FONT][FONT=Arial, Helvetica, sans-serif]@ splines 1.54", @ neckdown 1.367", operating diameter 1.351"[/FONT]
[FONT=Arial, Helvetica, sans-serif]@ flange 1.458"[/FONT]
[FONT=Arial, Helvetica, sans-serif]30 splines[/FONT]
[FONT=Arial, Helvetica, sans-serif]Axle Flange Bolt Pattern[/FONT]
[FONT=Arial, Helvetica, sans-serif]8 on 3.523", 1/2" holes, bolts are 1/2-NC13x1.5" [/FONT][FONT=Arial, Helvetica, sans-serif]Pinion Yoke U-joint Strap Bolts[/FONT]
[FONT=Arial, Helvetica, sans-serif]7/16 " head, 1.296" x 5/16-NF24[/FONT][FONT=Arial, Helvetica, sans-serif]Diff Cover Bolts[/FONT]
[FONT=Arial, Helvetica, sans-serif]Fourteen (14) 3/8-NC16 x 3/4"[/FONT][FONT=Arial, Helvetica, sans-serif]Ring Gear Bolts[/FONT]
[FONT=Arial, Helvetica, sans-serif]Twelve (12) 9/16-NF18[/FONT][FONT=Arial, Helvetica, sans-serif]Pinion Nut Size[/FONT][FONT=Arial, Helvetica, sans-serif]1.5"[/FONT][FONT=Arial, Helvetica, sans-serif]Axle shaft to Hub bolts[/FONT][FONT=Arial, Helvetica, sans-serif]3/4" head, 1/2-NC13, approx. 1.5" long[/FONT] [FONT=Arial, Helvetica, sans-serif]Ring Gear Diameter[/FONT]
[FONT=Arial, Helvetica, sans-serif]10.5"[/FONT][FONT=Arial, Helvetica, sans-serif]Pinion diameter[/FONT]
[FONT=Arial, Helvetica, sans-serif]1.750" x 30 splines[/FONT][FONT=Arial, Helvetica, sans-serif]Carrier Break[/FONT]
[FONT=Arial, Helvetica, sans-serif]4.10 / 4.56[/FONT][FONT=Arial, Helvetica, sans-serif]Approximate Weight[/FONT]
[FONT=Arial, Helvetica, sans-serif](lbs)[/FONT][FONT=Arial, Helvetica, sans-serif]550 with brake drums[/FONT]
[FONT=Arial, Helvetica, sans-serif]450 without brake drums[/FONT][FONT=Arial, Helvetica, sans-serif]Width - WMS-WMS[/FONT]
[FONT=Arial, Helvetica, sans-serif](inches)[/FONT][FONT=Arial, Helvetica, sans-serif]SRW/DRW 67"[/FONT]
[FONT=Arial, Helvetica, sans-serif]C&C DRW 63"[/FONT]

 

[scrambled]

There is no torque spec for pinion nuts. The preload spec for the pinion bearings tells you how tight to make things. To measure preload, you have to pull the pinion support out of the axle and tighten the pinion nut until you reach the desired preload by turning the pinion nut with an inch pound wrench.

In the driveway at night, just snug it down by hand with a decent sized 1/2 inch ratchet and locktite the nut.