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Full Floating Axle and Ring Gear, How to tell?

Fuddrucker

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Fuddrucker Enthusiast

Fuddrucker

Posted
Posted

Does any one know how I can tell if I have a full floating or semi floating axle? I also need to figure out if I have 10.5 ring gear, or 11.5 ring gear. I want to get a new Mag-Hytec diff. cover and there are two choices for the 14 bolt.

 

I have an 03 Chevy 2500HD, 6.0 gaser, 4L80E tranny, 8 lug wheels.

 

Thanks

Heavy Duty Enthusiast

Heavy Duty

Posted
Posted

I believe all you have to do is pull off one of the rear center caps on the wheels. A full floater will have a bunch of bolts in a circle holding the axle in. I dont think the semi floaters have that.

Hecktorx Enthusiast

Hecktorx

Posted
Posted

There are actually three 14 bolts made by GM. The only semi-floater is the 9.5". You should have the 10.5". I'm pretty sure you only get the 11" on with the 8.1l or the 6.6l.

 

Kenny

Colorado Kid Enthusiast

Colorado Kid

Posted
Posted

Yup, you've got old reliable, the 10.5" full-floater 14-bolt.

 

All 6.0 liter 2500HD, 3500, 2500 and 1500HDs use that axel, and so do a whole bunch of older 3/4 tons and 1 tons (not all of them, but most of them), all the way back to my '74 C2500 454.

 

8.1L and Duramax 2500HD and 3500 use the 11.5" full floater 14-bolt.

Fuddrucker Enthusiast

Fuddrucker

Posted
  • Author
Posted

Thanks for the replys. I took of a wheel and it is the full floater and I will go with the 10.5 ring gear for my order.

 

Thanks again!

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