Yes in 6.0 2500HD pickups and 3500 suburbans.
CK5
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Did any 3/4 tons get 14 bolt full floaters after 1981?
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Yes in 6.0 2500HD pickups and 3500 suburbans.
Yep sure are. Diesel trucks got the AAM 11.5” tears so the 14FF’s are still going strong.
I cant recall if they were all crew cabs or not,but I do remember my dad taking a C2500 home once with a utility body when his company station wagon was being serviced and it was not a crew cab,but had the 1 ton frame under it,with single rear wheels..I had a 4 speed manual transmission too..
I think fleet trucks can be ordered special just about any way the customer specifies even if they have to make "exceptions"..
Technically they are 10.5" AAM (American Axle and Manufacturing). AAM is a spin-off of the old GM Corporate axle division. The 10.5" used in many newer 2500HD's is basically the same axle as the 14FF with a few updates.
Correct ^^^^^^^
If anyone can find the next best thing get the 11.5" rear 14 bolt. These things are MASSIVE! I used to get hard seeing and handling a D70HD (still do, in a way) but these 11.5's are huge! Plenty of them out there and in SRW configuration plus most of them have disc brakes so you're already ahead of the game with a swap.
The 2011 and newer 10.5” and 11.5” in pickups have a 170mm bolt pattern and 4” axle tubes. The van and suburbans 2011 and newer have the 4” axle tubes and a 6.5” bolt pattern. Those are the most desirable ones.
170 mm bolt pattern as in the same as the Fords? If that's the case then I can find Weld Racing wheels all day long with that pattern. Just need to address the pattern issue up front on a solid axle.
Superduty is 8-on-170mm
New GM single wheel is 8-on-180mm
New GM Dually is 8-on-210mm
You can get 8-on-6.5 unit bearings for Ford Superduty axles
Back in my junkyard days,the trucks that had the biggest rear diffs in a 1 ton were usually the P-30 step vans..
We had two 1970's P-30's that had an 11,000 gvw rear axle (dually),and they both had 6:17 gears too...with a 292 straight six!..top speed must have been 45 mph or so ?..
We had two 1970's P-30's that had an 11,000 gvw rear axle (dually),and they both had 6:17 gears too...with a 292 straight six!..top speed must have been 45 mph or so ?..
If you go off road with a 11.5 aam unit you have an even bigger anchor than a 10.5 14b. Don't get me wrong, it's a great axle for brute strength towing, but it's huge size in the housing will kill ground clearance.
One other thing about the 11.5 is the pinion gear and bearings are not in a separate pinion housing like the 10.5. Nor does it have the unique 3rd bearing for the pinion support. Basically the pinion is set up similar to a 10/12/14sf or Dana 60/70/80.
No. I hit the wrong key. 180mm not 170mm(Ford).
I'm aware of the design and pinion and also the size. In my area the size won't matter since we don't have rocks around here. I'm perfectly fine with the pumpkin as it's not much different than a 14FF.
While I've seen numerous rears side by side and even up close in person I've never seen an 11.5" by a D80 but I have seen D80's by themselves numerous times. Has anyone got pics of these 2 axles by each other? Just for size comparison.
I don’t have any comparison pics but I swapped my Dana 80 for a Dodge 11.5 and didn’t loose any ground clearance at all
