bent my differential cover -- plus fix
Bigger images are here. Bent the bottom of the differential flange. Without a rock guard, it was bound to happen eventually on some of the 'roads' I drive. Very minor leak though. Old vs...
Forum Discussion
silversand wrote:
...nice job Cal! Those massive 10.5 and 11.5 GM Corporate (later, made by AAM) diffs are freaking awesome. I think that the Allison 1000 tranny with Duramax comes with the 11.5 inch rear end in the 3500?
The only thing with these big 14 bolters is: ....you know a GM Corp axle has been down the trail when you see plow furrows down the middle of the offroading trail LOL...
I think the only way to get that pumpkin higher off the trail is with very large diameter tires (and a change of ratio to ~4.56 with ~41-9 teeth...and fly-cut that big housing down an inch or more-ish).
The gear oil quantity is very well known for those diffs...after you put in the correct quantity, you bench-mark the level through the filler hole with a 90deg bent white wire tie..marked with indelible black marker..and throw that new tool in your glove box :D
Silver,
The AAM 11.5 is used with all Duramax and 8.1L gas engines, and many Dodge trucks. (from 2003?? until current ASAIK)
You're right about the larger tires. No other lift actually gains any (diff) ground clearance.
Your tool suggestion might work better than my finger --
