Aisin 6spd auto or 68RFE | Cummins Diesel Forum
May 4, 2024 · Because the Aisin has earned a solid, time-tested reputation as a very stout, dependable transmission for towing. Driving around town empty isn't bad either, you get used to it's shifting habits …
Aisin Tune ordered | Cummins Diesel Forum
Dec 29, 2023 · PPEI has released a tune for the Aisin. Has anyone tried it yet? I took my truck in for the latest OEM update and it shifts OK(ish). Before the latest flash it had a 2-3 shift flare (common issue) …
2022 Aisin Transmission Failures Information | Cummins Diesel Forum
Jan 15, 2023 · Just wanted to create an informative post for anyone experiencing a premature failure on their 2022 3500 / 4500 / 5500 with the AS69RC "Aisin" transmission. This has been an ongoing issue …
Aisin transmission - real world reviews | Cummins Diesel Forum
Jun 6, 2016 · Hi all, Looking for some real world experience and honest opinions on how this 6 speed trans is working for you guys. There seem to be very little reviews, both good and bad, on this …
ZF Powerline 8-Speed Conversion Discussion | Cummins Diesel Forum
Dec 6, 2024 · For my desires and truck, it makes more sense to upgrade from 68 RFE to new ZF Powerline 8 speed than to a 6-speed Allison or upgraded 68. Better mileage, better acceleration, and …
Performing a Drain & Fill on the Aisin AS69RC Transmission
Aug 21, 2014 · The Aisin AS69RC requires a drain & fill at 30,000 miles. At 60,000 miles, the pan is dropped, the sump filter is replaced, and the fluid is replaced. At 90,000 miles, another drain & fill is …
Aisin Transmission | Cummins Diesel Forum
I went and drove a 2019 3500 High Output with an Aisin transmission this past weekend. I was impressed with how strong the truck was but the Aisin transmission felt somewhat “clunky” to me. …
HO engine year(s) - Cummins Diesel Forum
Feb 12, 2020 · The Aisin transmission has been out for years. Until 2018 ram had three transmission choices. G56 (manual 350 hp 660 tq) the 68 (on all 2500, and some 3500 370hp and 800tq …
ZF 8 speed gear ratios (Read Edit at bottom of post)
Jan 11, 2025 · Low gear in the Aisin is 3.75 x 4.44 =16.65 Low gear with the ZF is 4.89 x 3.42 =16.724 High gear you will be running at a much lower rpm with the ZF while cruising down the highway but …
Aisin Transmission | Cummins Diesel Forum
Nov 26, 2024 · Here goes this may be a length post. I have four ram trucks all late model on this particular one the truck is a 5500 cab & chassis 84 inch CA. One year ago the motor blew because …