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smart money says replace the transfer case /transmission ...the quandary now lies with finding a good used unit and not buying another bum transmission... other wise MTP has retran units available for $10k

more pondering has left me with the “mature” option that it would be better for my TC/ tranny impending doom noise to be diagnosed by a Allison technician with experience in all variants of the 3070 family before I take then Sawzall or plasma cutter to task…

My transmission s/n is ”prior” as shown in your red circle…..necessitating the upgraded composite thrust bearing????, but a parts search via Allison reveals the replacement is the same “ defective” bearing….hmmmmm. Is there a difference in transfer cases between then A0 and A1 versions ?

curious how high must the 1078 be lifted in order to drop the TC/tranny from the bottom..? or is the unit removed from the top?

a possibility for sure....

therein lies another rub. When I drove the truck to my home for good long look before discovering the bearing failure, which I hope is the cause for the " grumbling howling" sounds upon deceleration, within minutes the jack booted Gestapo thug HOA was on the phone, thus negating a " home...

after spending a solid 45 minutes "engineering" the simplest most efficient way if repositioning the crossmember.... sawzall and reweld ... crossmember had 4 Huck bokts in passenger side, 1 inch from the fuel tank ...drivers side , I believe 2 huck bolts and 2 grade 8 bolts.. The driver's side...

From what I understand the upgraded C6 thrust bearing is a simple drop in….if that’s the case, fighting with 8 Huck bolts , moving the crossmember and maybe a little nip/tuck in the bed frame rails with a plasma cutter will grant enough access to the thrust bearing… is it possible to...

I agree.... after taking a good long looky loo at which frame components stand in the way of removing the TC without removing the tranny, you may have had the right idea .... a grinder on the cross member, Huck nuts after dropping the air tanks and a cut off wheel/plasma cutter to a relatively...

thanks much for your insight ... tomorrow I will pull the filter screen... and pray. I'll keep you posted.

based on the parts diagrams...the thrust bearing seems to be the culprit behind all my grief..the "new/improved " version is $250..ouch..(through Allison)..part #7 on page 21-66....I'll check the screen "filter" as mentioned in -24P tomorrow.... I assume that is the shared oil line with the...

1995 S&S 1078 AO.. as for the TM, I've had a heck of a time trying to figure out which TM is applicable to my transmission/transfer case woes .. can you please send me the file or link to the specific TM...thanks much

and I too have joined the phantom bearing explosion..https://photos.app.goo.gl/EKVtaCu7xFtM4KPj9 and unfortunately I do not have the mechanical aptitude for a tear down/reassemble that the original poster has .. therefore I am in need of a tranny/transfer case unit in good working order as...