2002 1500hd Rearend?

[McLeod]

We're looking at an '02 1500HD. It has the 14 bolt, of course (...counted'em!), but we can't determine if it's the 9 &1/2 or the 10 & 1/2.......also, it is a floater, or semi floater? Can the pinion be removed through the front of the housing, or does it have to come out through the rear cover...and, finally, are the axles held in with c-clips? Thanks for any help anyone can give. Mc

[pwall]

Welcome!

 

If you can check the RPO codes listed in the glove box, that will at least tell you the gear ratio:

GU6 = 3.42 Ratio

GT4 = 3.73 Ratio

GT5 = 4.10 Ratio

[Kodiak450]

It has the 9.5 rear.

[McLeod]

Thanks -- I did check a couple of codes and verified that it's limited slip and 3:73. I was "hoping" that it was a full floater, although I'm confident that the semi floater is sufficient for the light towing we'll do. On the other hand, I'm thinking that it just may be worth going the "extra mile" to find a 2500HD that will be truly "heavy duty" right down to having a full floater(?). ......still, this 1500HD sure does look good!

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My 2500hd has the 10.5" full floater locker with 4.10 gears.

[Prokopchuk_9]

i beleive its an american axle 9.5" full floater...

[markw8]

i beleive its an american axle 9.5" full floater...

 

It won't be a full floater. To the OP, unless the axle would have damadge that can't be seen or heard, that semi-floater will handle most anything you throw at it. On my 2000, 2500 I carried a 3500# loaded truck camper about 60k miles of the 82k Ihad the truck. 5800#s on the axle, including bad roads to Alaska and back. They don't break easy.

 

Mark

[briddle3]

whats the difference in a full floater and a semi floater

[McLeod]

whats the difference in a full floater and a semi floater

I may not be the best qualified to answer....but, the "full" means that the axle plugs into the differential on one end and into the hub on the other, while it's the hub that's carrying the load (weight of the truck, plus load and towing); The "semi" axle also plugs into the differential and is held in place there by a "c clip" and it has the hub flange on the other end -- the axle itself, then, carries the weight of the truck, load and towing and has bearings around it on the flange end. Hope that makes some sense.

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whats the difference in a full floater and a semi floater

I may not be the best qualified to answer....but, the "full" means that the axle plugs into the differential on one end and into the hub on the other, while it's the hub that's carrying the load (weight of the truck, plus load and towing); The "semi" axle also plugs into the differential and is held in place there by a "c clip" and it has the hub flange on the other end -- the axle itself, then, carries the weight of the truck, load and towing and has bearings around it on the flange end. Hope that makes some sense.

 

 

Yep, that's right. FF=Hub carries weight. SF=axle carries weight. FF can handle more weight because it's not on the axle, which also has to turn the wheels at the same time.

[briddle3]

So with a semi floating the axle does 2 jobs: carrying the weight of the truck and propeling the truck forward, and with a full floating the axle does the job of propelling the truck forward and the hub does the job of carrying the weight of the truck? did i pick that up correctly

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So with a semi floating the axle does 2 jobs: carryi

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So with a semi floating the axle does 2 jobs: carrying the weight of the truck and propeling the truck forward, and with a full floating the axle does the job of propelling the truck forward and the hub does the job of carrying the weight of the truck? did i pick that up correctly

 

Exactly, that's why the FF is more heavy duty.

[Prokopchuk_9]

hmm...i thought any 14 bolt after 99' was full floating...i stand corrected. never taken one apart. only dana 60's and 2.5 ton rockwells

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hmm...i thought any 14 bolt after 99' was full floating...i stand corrected. never taken one apart. only dana 60's and 2.5 ton rockwells

All you have to do to check is take off the hub cap and look for the 8 bolt held in axle shaft, and that's a FF. Looks just like a small version of a semi's back axle hubs.