Military Axels - M1008

[cuervo]

Hello all,

Is there anyone with info on these axels? The M1008 is a full size GMC/Chevy with 6.2 motor, I believe. Other then that, I really don't know much about these trucks.

They appear to be Dana 60 axels, are they? If so, are they good upgrades for a stock CK5/Jimmy?

Thanks

 

[prerunner1982]

the military trucks are 1 1/4 ton rated and the blazers are 3/4 ton rated. any drivetrain component would be a good upgrade for a 1/2ton truck/blazer.

 

[wayne]

M1008= 6.2/th400/208 with a D60 front and 14ff rear. Now most had a Detroit in the rear. All had 4:56 gears. Some had Trac Lok's in the front. Very few had 205 t cases in them.

The K5's had 6.2/th400/208 with 10 bolt axles, 3:08 gears and a Gov Lock in the rear.

 

[cuervo]

Are widths of the M1008 the same as a Jimmy/Blazer? Will the sping pads need to be moved?

 

[cuervo]

Come on guys, help a "newbie" out with his first major upgrade quest.

 

[fourwheelerjeff]

[ QUOTE ]
Are widths of the M1008 the same as a Jimmy/Blazer? Will the sping pads need to be moved?

[/ QUOTE ]

rear pads will need to be moved /forums/images/graemlins/thumb.gif

 

[wayne]

[ QUOTE ]
Are widths of the M1008 the same as a Jimmy/Blazer? Will the sping pads need to be moved?

[/ QUOTE ]

Front is a bolt in, rear pads will need moved and you will need a conversion u joint. Depending on the year of your K5 depends on if the e brakes are a bolt in.

 

[cuervo]

Thanks guys!

I have an 87 Jimmy that will get these axels so I guess it should be pretty straight-forward with install. I guess if I need to put on new rear pads I'll be able to set the degree with them instead of shims.

 

[wayne]

[ QUOTE ]
Thanks guys!

I have an 87 Jimmy that will get these axels so I guess it should be pretty straight-forward with install. I guess if I need to put on new rear pads I'll be able to set the degree with them instead of shims.

[/ QUOTE ]

The rear e brake cables will work on your 87. Conversion ujoint is Napa part #447, and yes you can set pinion angle with the spring pads. Here is what I would do. Put the axle in with the pads not welded to the axle. Once it is under and bolted up you can use a jack to set the pinion angle. Once it is set tack them on good but do not weld them solid. Take it for a spin but be light on the gas when starting out. If it does not vibrate then you can weld it up the rest of the way. I made the mistake of welding them solid on the first swap I did. I had the angle set and took it out and it vibrated like mad from about 45 to 60 mph. Wound up pointing the pinion straight at the t case. It looked like I should have had a rear CV shaft but I didn't.