3500 srw to buy the high output or not - Dodge Cummins Diesel Forum
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post #1 of 62 (permalink) Old 10-18-2019, 12:21 AM Thread Starter
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3500 srw to buy the high output or not

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.


03 qcsb black 4x4 Calibrated Power thuren bd r850 48re 10.2 stroker pump, bbi stage 2s studs springs pushrods fully ported head banks side draft bd ex manifold intercooler fuel boss 2mic ham cam 188/220 flexalite 2019 cclb bighorn high output
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post #2 of 62 (permalink) Old 10-18-2019, 01:04 AM
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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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post #3 of 62 (permalink) Old 10-18-2019, 03:55 AM
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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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post #4 of 62 (permalink) Old 10-18-2019, 02:05 PM
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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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post #5 of 62 (permalink) Old 10-18-2019, 04:16 PM
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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.

2019 3500 Big Horn DRW
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post #6 of 62 (permalink) Old 10-18-2019, 04:28 PM
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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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post #7 of 62 (permalink) Old 10-18-2019, 05:36 PM
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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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post #8 of 62 (permalink) Old 10-18-2019, 05:42 PM
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i have no regrets going with the 68.

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'19 2500
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post #9 of 62 (permalink) Old 10-18-2019, 07:54 PM
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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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post #10 of 62 (permalink) Old 10-19-2019, 02:15 AM
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Quote:
Originally Posted by brownbear View Post
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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post #11 of 62 (permalink) Old 10-19-2019, 02:29 AM
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Sounds like most of the replies havenít driven either.

Go drive both, choose what you like.


19 2500 Longhorn Mega 4x4

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post #12 of 62 (permalink) Old 10-19-2019, 03:03 AM
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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.

@TheRAMadaINN SOLD...2017 3500 CCSB SLT 68RFE 4x4 Flatbed FourWheelCamper Carli Pintop 37" Ridgegrapplers 4.30's
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