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Guys Im getting real close at buying a new 2019 3500 srw. Im really torn on buying the high output with the aisin or the 68rfe.

I just recently drove a 2500 and loved the way it drove with the 68. The aisin (ive driven 2) seems laggy and almost like it wont get out of its own way. one was in a 5500 cab n chassis and the other was in a 3500 srw laramie.

I know it has been discussed on here but am i missing something or is it just a preference. I currently am driving my truck that is in my signature everyday so realistically most trucks will feel laggy compared to that.

Truck will be driven mostly on the highway. Will not have a trailer hooked up to it everyday but will eventually have a gooseneck to haul a truck and a car.

Are trans oil change intervals more frequent with the aisin too?

Just looking for some insight.
 

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AISIN if you're towing heavy a lot, personal preference otherwise (or if you are tuning). AISIN will stand up to a lot more abuse than the 68 if you are keeping the tuning stock, but isn't tunable and may have issues if you go that route. I personally prefer having a stronger transmission from the factory that I don't have to worry about as much.
 

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Get the HO. You won't look back. The Aisin will do the the adaptive learn thingy for your drive style but that takes some time. Just gotta be patient. I've got almost 12K kms on the clock (6K kms towing) and am very pleased with it. It gets confused (false neutral?) occasionally between first and second when unloaded but the frequency of those instances is few and far between. Besides, the torque output on the HO will get yer blood flowing like no amount of caffeine ever will! It's a hoot!
 

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I looking at a 3500 SRW too. I'm leaning towards the 68 since I only tow heavy a couple weeks a year. Plus the Aisin requires service every 30k miles. Coming off a 2011 with the 68 and had no problems (240K miles)
 

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I drove both and decided that I preferred the non-HO. The higher compression engine is more responsive and only tow a 16,000lb trailer. Saving money was icing on the cake.
 

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I personally don't like the aisin. It de-fuels heavily between shifts and is not as fast as the standard output with the 68rfe despite having more power. If you are pulling very heavy all the time the aisin is probably the better choice though. I like the 68rfe personally.
 

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I have the HO and like a lot of things about it, unfortunately Ram just doesn’t have the Transmission situation nailed just yet. The Aisin is solid but feels clunky in city driving and I just don’t like the 68 much at all. Ford and GM have a much better Trans situation at the moment but as soon as Ram releases the ZF 8 speed they will be right in the same league as the other two.
 

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In my humble opinion, the 68RFE is the way to go in the SRW. First, there's been a bump in torque to 850 lb ft. Next, they are back to the 3.73 gears. The max trailer weight rating is now over 20k with that config, and you don't have the maintenance schedule of the AISIN. With the AISIN, you'd get a max trailer weight rating of a hair over 25k, but you wouldn't catch me towing a trailer that heavy with an SRW - that's dually territory. I don't even understand how you'd achieve such thing, quite frankly, because it seems to me the tongue weight of such a heavy trailer would be overloading the tires. Lastly, as has been talked about quite a bit - you're only getting the max torque of the HO when the conditions are perfect to where the computer "allows" you to have it, which is when the stars align. Just my two cents.
 

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In my humble opinion, the 68RFE is the way to go in the SRW. First, there's been a bump in torque to 850 lb ft. Next, they are back to the 3.73 gears. The max trailer weight rating is now over 20k with that config, and you don't have the maintenance schedule of the AISIN. With the AISIN, you'd get a max trailer weight rating of a hair over 25k, but you wouldn't catch me towing a trailer that heavy with an SRW - that's dually territory. I don't even understand how you'd achieve such thing, quite frankly, because it seems to me the tongue weight of such a heavy trailer would be overloading the tires. Lastly, as has been talked about quite a bit - you're only getting the max torque of the HO when the conditions are perfect to where the computer "allows" you to have it, which is when the stars align. Just my two cents.
You achieve it by having a suitable sized goose neck and understanding how to load it. I agree that having a dually at that weight would be ideal, but I'm not towing that much all the time. I agree, though, on the Aisin. If you are looking for sporty performance, this is not the transmission for you.
 

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Sounds like most of the replies haven’t driven either.

Go drive both, choose what you like.
 

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Owned a 2017 crew cab short bed with 68rfe on 37’s. 3:42’s then 4:30’s. I enjoyed it and it treated me well for 21.6k miles before selling it. Test drove a 2019 cclb HO and did NOT like it. But I’m willing to give it a second chance, planning to test drive another before deciding. When i floored it, it didn’t move for what felt like forever. Gonna try rolling into the throttle, maybe it responds better to a different driving style.
 

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My 2016 3500 SRWhad the 68RFE and it was awesome. I didn't have any issues with the way it shifted, it towed everything I wanted without issue, but I didn't tow super heavy or frequent.

My 2019 3500 SRW has the Aisin, it definitely shifts differently, especially for the first 1500 miles. I'm either used to it now, or the shifting has changed a little from driving style or wear in. I don't mind it at all, I like it. I don't buy 3500s because I want them to feel like a car. I like that they feel like a truck. I like that the cabs are much quieter, but if I wanted a smooth all absorbing ride, I'd buy a 1500. I'm sure the coil spring 2500s are nice too, I just can't accept the loss in payload in the HD truck.

This is, obviously all personal preference. Test drive the trucks. In the end, it will always come down to what you will be happy with and what you will be using it for. If I was consistent pulling heavy trailers, I would get a 3500 DRW. I just don't have the need for a DRW right now.

Sent from my SM-G975U using Tapatalk
 

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Owned a 2017 crew cab short bed with 68rfe on 37’s. 3:42’s then 4:30’s. I enjoyed it and it treated me well for 21.6k miles before selling it. Test drove a 2019 cclb HO and did NOT like it. But I’m willing to give it a second chance, planning to test drive another before deciding. When i floored it, it didn’t move for what felt like forever. Gonna try rolling into the throttle, maybe it responds better to a different driving style.
You are spot on with the lack of acceleration off the bottom, it’s the single biggest thing I hate about mine. Rolling into the throttle helps a little but this is truly a problem that will likely never be solved by Ram with a recall. The first week with mine I nearly got into an accident, I pulled out to merge into traffic with plenty of time but the truck just would not go for what seemed like forever.
 

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The throttle booster helped quite a bit on my 13 with the aisin. Don't hear too many problems on the forum with the aisin.
 

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I have the 3500 Mega Cab 4x4 HO AISIN SRW 3.73 and have no complaints! I'm a previous owner of all gens CTD and 3rd,4th,5th gen gassers and 2 charger hellcats! For a stock 7800 lb truck it holds its own really well. I did not test drive the standard output 68rfe so I can't say it runs or shifts better. I don't even have 500 miles yet but it is feeling better as I go along. I'm adding Power Service Clear-Diesel and Diesel Kleen since day one. Not too happy it has a CP4.2 but it did not stop me.
 

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I just came from a 14 with the 68rfe and now have the 19 with Aisin. I would not go back. The 68 did feel smoother from the beginning, but became clunky at around 15k. I tow heavy several times per month and tow often during snowmobile/snow bike season. The Aisin has firmer shifts throughout until it learns your driving habits (or so it feels like that). At just over 3k the Aisin settled in and is now smoother than my 68 when I traded it at 70k.

Now, as far as the HO, have you ever complained about too much power? I don't think so. My HO feels almost as powerful as my 4th gen felt tuned, just a little slower off the line, which I don't race a long box 3500 anyway. It is my DD and I could not be happier. The only things I dislike have nothing to do with powertrain. I think the rearview mirror surround plastic shroud creates a blind spot and the MSRP. Other than that this is the best truck over all I have owned. I run a ford F150/f350 and F550 and ram 3500 at work. This 19 3500 is the cream of the crop.
 

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Like USMC8511 said, the HO/AISIN combo takes a few thousand miles to settle in, and because of that, I think a lot of people hate on it without having legitimate experience with it. A five mile test drive in a brand new, unloaded truck does not do it justice.

I'm happy with my choice to go with the AISIN. After a few thousand miles the response is better, the shifting is smoother, and the thing hauls my 15K+ fiver amazingly well.
 

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So those who bought new an aisin equipped ram, the driver experience is improved after a few thousand miles....in other words don’t worry about test driving and just go for it 🤣
 

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I went from a tuned 2012 with revmax vb and trans tuning 68rfe. We decided on the 2019 HO Aisin after the first test drive. I have just over 3k miles on it with about half of those towing about 13k lbs. I was hesitant to go with the aisin due to no aftermarket support but they seem to have less issues when mildly tuned vs a 68rfe is likely to have problems if turning power up at all. If my goal was bigger power i probably would have opted for the 68 and plan on building it for that. But this is likely to stay more a tow rig. I have been very happy with the aisin so far other than a few funky shifts here and there.
 
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