14 Bolt FF rear axle rarity

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GoToGuy

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On my 95k2500, 6 lug, the drums and rotors slide off.
 

stutaeng

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I posted this on a thread here from late last year. I can't remember where I got the numbers (diesel hub website?), but I believe they are accurate:

14 bolt:
9.5" = 5,000 ft lb
10.5" = 6,242 ft lb
11.5" = 8,321 ft lb

The 11.5" doesn't have the support as the 10.5". I follow this guy on YT from Wisconsin or somewhere up there and they were showing how to swap a locker from the Ram/Diesel 11.5" (Thorsen-style IIRC (isn't that technically a LSD?)) into their Duramax; apparently the G80 was either the only locker or one of few lockers available for the Chevy/AAM 11.5".
 

smdk2500

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On my 95k2500, 6 lug, the drums and rotors slide off.
On the 8 lug 4WD the rotors don't slide off. They are pinned behind the outer flange of the wheel bearing. To replace the rotor the wheel bearing has to come off. And most of the 8 lug Full float the drums are pinned to the hub assembly some like someone posted have slide off. My 95 does not have that style. The 8 lug semi float axels the drum slides off.
 

Erik the Awful

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Google pictures of the 14 bolt and the Dana 70 so you can tell them apart before you go buying an axle. My free '88 C3500 came with a factory Dana 70.
 

packer0440

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Not rare at all. GM starting using them in 1973, I think.

$200 sounds like a pretty good price, Though. If they're the version with slide off drums (RPO code JB8) those would be great to grab, as many of the 14BFF had the drums held onto the back of the hubs, so the hub/axles have to come off to get to the brakes. JB8 also uses the wider shoes.
I believe having slide off drums depends on model year; my '92 dually truck has JB8 brakes with pressed on drums. I think I remember someone on here with a later model that had slide off drums though.
 

stutaeng

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Well now I'm curious, LOL. How do you tell? Just remove the wheel and drum should just slide off...or not?
 
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454cid

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Well now I'm curious, LOL. How do you tell? Just remove the wheel and drum should just slide off...or not?

That will depend on rust. The slide off drums go over the studs and the hub, and the hub is fitted pretty precisely. I put anti-seize on my hubs so that the drums don't rust on.
 

stutaeng

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Speaking of which, the ARB is the only selectable locker for the 14b/10.5?! I always thought there was also an E-locker, but that's not the case :-(
 

RichLo

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That's probably because the Detroit mechanical locker is so cheap, easy, and strong. There isn't a huge market for selectable lockers that cost 3x as much as the Detroit.
 
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