Grit Dog

Had nothing but a good experience with the Alli in my '02. Sold it with just under 100k mi last week and it was still tight. Was driven with a 90hp tune since 30k mi......but not beat on, and well maintained.
I'd get an Allison 1000 equipped truck anytime.

cincydiesel

Seems the only problems I hear of are self inflicted wounds.. I dont expect any stock tranny to hold with any added power and a loaded trailer.

Troutstrannysvc

Most of the dodge trannys we get in at the shop (not just trucks) are all results of the torques falling apart.. A604s are good for that.

cumminsdriver635

Wow, I posted over a year ago on the first page, and guess what. Still on the same transmission!

Eric

duratothemax

the shifter cable fell off? No computer malfunction can cause the trans to not come out of park.

the early allison problems were with the NSBU switch (the shifter position switch on the side of the transmission). When this fails the trans goes into limp mode and it defaults to 3rd gear or reverse. This is probably most of the allison problems, and when you see people post "my dealer has had 37 broken allisons in the past week, they are junk", I guarantee that 36 of those cases were a failed 50$ NSBU switch.

ben

duratothemax

I would hope so, seeing as yours is built and has billet hard parts.....

ben

cumminsdriver635

Its only partially built. Converter, billet input, and valve body are the non stock parts. Everything else is stock dodge with at least 90k miles on it. Plus my truck is putting down over double the factory flywheel horsepower at the rear wheels. A lot more than this transmission was intended to handle.

Eric

dieselfumes57

true........been there done that cost me a lil over 5 grand

Prodart440

I sell transmission parts for a living, and sell about 1/2 the number of allison kits vs. the 48RE. On that note, I think alot more of the 48RE's are used and abused.


Aaron

92'1stGen

"um, yes I am sure about that one". Yes the 48re is based off the 40 year old 727, but any mechanical device that has less moving parts and less parts to break, will be more reliable than the others. For example, this is why the 5.9 is a much more reliable design then its competitors, it's simple and has less parts. It is interesting though how the original poster has never replied back to the topic.

xtoyz17

Less parts does NOT equal more reliable. Less parts just means less failure points. A duramax could be 6 cylinders, and a cummins could be 8 cylinders. If the cummins is over built and the duramax is built with parts that have a factor of safety less than one, does that mean the duramax is more reliable?

Just wanted to point that out, not bashing either engine or transmission.

92'1stGen

Yes design contributes, but history has shown us, less parts and a simplier design make a more reliable peice. Yes the 48re has it's draw backs as well as the Allison too, but the 48re still has a lower failure rate than an Allison. But if the Cummins had a 8 cylinders and the Duramax had 6, then we wouldn't be having this discussion.

duratothemax

I think you are wrong. There are no one-way clutchs, sprags, overrunner things, apply levers, and band doo-hickys in an allison. An allison is dirt simple mechanically. Electronically it as impossibly complicated labyrinth, but as far as mechanical parts, with the allison, you dont know what you are talking about.

ben

xtoyz17

Ignoring the fact this thread is a year old, I'm still gonna ask:

Where are you getting this info from? Not trying to come off argumentative and I'm certainly not a GM/Allison fanboy but from what I understand it's an excellent transmission?

Curiosity only, I swear...

ratsun

[QUOTE=92'1stGen;2236532] Yes the 48re has it's draw backs as well as the Allison too, but the 48re still has a lower failure rate than an Allison.

I have a personal friend that owns a local independent trans shop who built my 47re.
He has seen many more 48s than allys run thru his shop in both stock and modded trucks.
Locally there is no way we have more modded dodges than chevs so I think your statement may not be 100% accurate.
He showed me the different internals between the two and the ally hands down is a beefier tranny.
I have yet to see the new dodge 6 speed apart but it's sure nice to drive.