Ram exhaust brake at slow speeds.

Cummins12V98 wrote:

Me Again wrote:

NC Hauler wrote:

blofgren wrote:


Definitely a matter of personal preference; I like the manual transmission and the increased reliability it gives over the auto. I also don't think that the difference in HP/torque at the rear wheels is nearly as much as the advertised numbers due to losses in the auto slushbox. But that's a whole different topic ;)

What "increased reliability"(?), does the G56 offer over the Aisin automatic transmission:h....Is that just your opinion or a fact? The Aisin is a medium duty transmission that has been very reliable in slowing a 16,400# 5er on some very steep, mountainous curvy roads with no manual down shifting...It's in tow/haul and does a great job with little to no human intervention . Don't know if one can state, with facts that the manual offers "increased reliability " over the automatic:R

Actually the G56 and its aluminum case are noted for several issues. Over heating if pulling hard in upper gears being one of them. The dual mass flywheel that goes with it has issues also. All in all the Aisin would be consider much more reliable. The NV5600 is/was considered a much better manual tranny.

Chris

At May Madness a couple years ago Stan Gozzi the West Coast Head Warranty Rep for Chrysler was asked about the Aisin Trans and he said "THEY DON'T BREAK". Personally I have heard of two Aisin's with issues they both had casting flaws and RAM replaced both in a couple days. I think both were in 2013's.

I have read of a few issues with Aisins on various Ram/Cummins boards as well. They definitely do break, as will the manual if it is abused.

Not looking to get into a pi$$ing match with anyone here, but if one looks at the difference in complexity between automatic and manual transmissions it is obvious that there is much more to go wrong with the automatic. They have tons of electronics, bands, etc. that the manuals do not have. At the city I work at we have had all types of automatic transmissions fail including Torqueshift, all types of Allisons from 5500 Series GM's all the way up to huge ladder fire trucks, and countless Ford 4 speed autos. Rebuilding these units, especially the HD ones costs a small fortune. Some of these failed at very low mileages as well. Manual transmission issues are usually related to poor drivers, severe overloading, and jacking up power levels to much more than the transmission was designed to take.

Newer autos including the Aisins are much better than transmissions of the past but there is still a lot to go wrong with them :B