CK5
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14 bolt FF install
- Thread starter BPK5
- Start date
I may be wrong about this, but isn't a 2006 1 ton an AAM axle and not a corp 14 bolt?
I know we typically look for pre-91 with pressed on drums behind the hub. You can google the "14 bolt bible" and it'll tell you what you need to know.
454Sub
5/8 ton status
Also, Im pretty sure thats not a 10.5in AAM either, Im fairly certain thats an 11.5in AAM. And that thing is a beast. And lockers for it are crazy money.
Yes
It still has a "14 bolt" dif cover, and is still very commonly referred to as a 14 bolt.
Pre-91 is basically because theyre bolt in. BUT, thats only if theyre from a 3/4 ton.Which, in this case, would mean pre-88. Which was harder to find after the early 80's because the introduction of the SF 14 bolt with a 9.5" ring gear.
It would indeed be a 11.5" ring geared AAM 14 bolt. I know that no GMT400's got a AAM. Also, i believe the first year for the 11.5" was 2001, the year the Duramax was introduced.
What im trying to say is, unless you plan on having a twin turbo Cummins in your crew cab on 38's this axle is way overkill. Its a very stout axle, and is found in the Cummins, Duramax, and 8.1l trucks that had allisons.
Dodge uses 11.5" shafts in a modified 10.5" carrier in the power wagon.
Sorry for the ramble. Hope all your questions are answered.
Last edited:
454Sub
5/8 ton status
Yep, my buddy has an 04 8.1L and it has it. (btw ALL 8.1s had the Allison, basically the 8.1L trucks are a Duramax equipped truck without the Duramax itself).
That thing is a monster, and it is extremely expensive to modify. I looked up locker prices for it awhile back, and wow to say the least. Its no ordinary 14FF in that respect.
That thing is a monster, and it is extremely expensive to modify. I looked up locker prices for it awhile back, and wow to say the least. Its no ordinary 14FF in that respect.
I do not agree with this, but i cant prove all pickups with 8.1's didnt have allisons. However, I can say that not ALL the 8.1's had the allison OR a 11.5" rear end. The burbs, yukon xl's, and avalanches with 8.1's had a 4l80e behind them, with a 10.5" FF
