CUCV axle question - Steel Soldiers::Military Vehicles Supersite

Monster Man · 01-25-2005, 12:22

hello all, I thought I was clear on the CUCV- that it had a 1 ton front and rear axle, the rear witha detroit.

Now, I have noticed conflicting information in three different spots- the first being a standard catalog of 4 wheel drives stating the obvious, that the K30 had a full floating 1 ton rear and a semi floating 1 ton front. The K20 had a semi floating rear, equivalent almost to the 1 ton but it was semi floating, and the front axle was weaker.

In the standard catalog of military vehicles, it says the CUCV was built off a 3/4 ton chassis with a 1 ton frontend. But how could that be if it has a full floating 14 bolt rear?

In Military Vehicle Magazines, it says the CUCV was just a 3/4 ton with "limited" slips front and rear, which is wrong

I just want to confirm what running gear this truck has? I'm looking to upgrade my Chevy truck in the future to a CUCV, if it has the best standard truck running gear available (well, I'll keep my NP205 unless I can find the CUCV with one), but am not sure I want to do that if it's only 3/4 ton. So is it a real 1 ton (or 1 1/4, whatever

) or just clever ratings by Uncle Sam?

Prerunner1982 · 01-25-2005, 13:40

the only 3/4 ton is the M1009 blazer... which you probably dont want parts off of.
to get the 205. you need to look for a m1028a1, m1028a2 (dually), or the m1031.
the 1tons are definately 1 ton running gear.. the blazers were intended more for personell use.. trucks were meant to be abused.. they are heavier duty.

Monster Man · 01-25-2005, 13:57

very good, thanks. Yeah, I figured they would be based on one tons, I don't know where the info came from they were based on 3/4 tons

well the m1009's, yeah

Recovry4x4 · 01-25-2005, 14:45

Here's the scoop on the CUCV axle. Blazers have 10 bolts front and rear. Pickups, and cab/chassis have the Dana 60F and 14 bolt rear with a detroit. All models except those requiring PTO stuff have the 208 transfer case. Models requiring PTO stuff including the M1031 had the 205 case. The 60f 14bolt stuff has 4.56 gears and the blazers have 3.08 gears. Does that clear it up?

Monster Man · 01-25-2005, 15:02

Quote:

Originally Posted by Recovry4x4

Here's the scoop on the CUCV axle. Blazers have 10 bolts front and rear. Pickups, and cab/chassis have the Dana 60F and 14 bolt rear with a detroit. All models except those requiring PTO stuff have the 208 transfer case. Models requiring PTO stuff including the M1031 had the 205 case. The 60f 14bolt stuff has 4.56 gears and the blazers have 3.08 gears. Does that clear it up?

yup- except, to confirm the CUCV trucks had a full float 10" 14 bolt, instead of the 3/4 ton 9.5" semi float 14 bolt?

thanks!

sodbuster · 01-26-2005, 00:57

Three quarter ton trucks came with both 9.5 inch semi-floating fourteen bolts with a c-clip stly axle, and a full floating fourteen bolt differential. One was a light duty three quarter ton and one was a heavy duty three quarter ton. All one ton single wheel trucks came with the full floating fourteen bolt in them. The cucv does come with the full floating rear end.

Monster Man · 01-26-2005, 19:30

Quote:

Originally Posted by sodbuster

Three quarter ton trucks came with both 9.5 inch semi-floating fourteen bolts with a c-clip stly axle, and a full floating fourteen bolt differential. One was a light duty three quarter ton and one was a heavy duty three quarter ton. All one ton single wheel trucks came with the full floating fourteen bolt in them. The cucv does come with the full floating rear end.

very good, thanks. So then when they said the CUCV was based on the 3/4 ton, it was the "heavy duty three quarter ton with 1 ton front axle", or, in other words 1 ton. Cool

thanks

Bob H · 02-19-2005, 01:10

Recovry4x4 · 02-19-2005, 03:56

spicergear · 03-04-2005, 23:21

M1028 has a posi in the front too. I'm unsure of what brand, but it's NOT and open differential.