Cvcu vs standard?

[mason72]

Anyone know if there are any actual differences between the cvcu axles and Dana 60, 14 bolt besides the gear ratio and locker?

 

[obijuank5]

They are basically the same as civilian axles.
And its cucv. Might help your search terms.
The only difference is the traction devices.
84 k30 vs 84 d30.

 

[sweetk30]

rear 14ff
civilian / civi = gov-loc unit if traction device was optioned .
cucv / military = detroit locker for traction device .

front dana 60
front civilian / civi = open diff
some truck used for service work like a m1028 got a light duty trac-loc posi up front . there not as heavy duty for offroad use and big tires as a power-loc unit .

otherwise just order parts for a 1985 k30 and you will be safe .

 

[ridenby]

Axle shafts-inner and outer where of smaller dia on a 1ton 60 than the ones we took out of my CUCV.

 

[sweetk30]

if you had around a 81 or older 60 then they are called early 60's and neck down shafts . and all gm outer shafts are 1.31" 30 spline . inner is 35 spline .

military got non-neck down shafts . unless someone has been in there .

 

[muddybuddy]

Refer to the dana 60 bible and 14 bolt bible on pirate. All the info you will need.

Differences (lack there of) have been addressed above

 

[mason72]

Thanks for the info.