new 2018 RAM 3500 w AISIN and HO 6.7 - Dodge Cummins Diesel Forum
4th Gen Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine, Transmission, etc...NO ADVERTISING

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  • 1 Post By Duelly Dad
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post #1 of 11 (permalink) Old 12-31-2019, 09:57 PM Thread Starter
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new 2018 RAM 3500 w AISIN and HO 6.7

just pulled the trigger on a new 2018 RAM DRW 4WD with the 4.10 axle ration AISIN. Limited pkg.

I will pull a pretty heavy Fifth wheel with it, and the specs on this setup are hard to beat. I went with the 2018 because of the CP4/CP3 issues. Plus dealer are dying to get rid of new 2018's.

I did some research on the AISIN with finding little info. But I am a RAM / Cummins fanatic and never had this combo before, so I am just polling the crowd to see what the thoughts are on this combo.

I have a 2015 2500 with the 68RFE, fully deleted and can't say enough good things about it.

is there anything I need to be especially ware of with the AISIN? I know the engine, but I don't know this transmission.

hit me with concerns. Thanks for any info!

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post #2 of 11 (permalink) Old 12-31-2019, 10:16 PM
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Congratulations on the new truck


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post #3 of 11 (permalink) Old 01-01-2020, 12:26 AM
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I believe the AISIN has service intervals that are really low, so you might want to be aware of that. I think it's 30,000 miles between transmissioin services, but I'm sure someone will correct me if I'm wrong.

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post #4 of 11 (permalink) Old 01-01-2020, 08:18 AM
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Congrats on your new purchase, trans service is a fluid change only at 30K and fluid filter at 60k, mine was pretty dirty at 30.
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[SIGPIC][/SIGPIC]
3500 MegaCab Dually 4X4
6.7L Aisin Trans
4:10 Gears
385 Hp 930 Tq
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post #5 of 11 (permalink) Old 01-01-2020, 11:24 AM
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@strikeu

The link below will tell you all you need to know for the drain and fill services as well as the sump filter services.

https://www.cumminsforum.com/forum/2...nsmission.html

The AS69RC is a great transmission, and when serviced as outlined in the maintenance guidelines, will give you some stellar service.

My previous 2014 RAM 3500 was traded in at 362k miles and the AS69RC shifted as new with that many miles on it. My 2018 RAM 4500 w/AS69RC is currently at 187,948 miles.....and has seen high GCW’s during towing.....one at 42,020 lbs.

The MOPAR ASRC fluid can get a a little pricey at the dealer. Mobil 3309 can be purchased on eBay and Amazon for under $75/case of 12 quarts. Mobil 3309 can be used in your AS69RC......just crawl under your truck and you’ll see a yellow decal stating to use either ASRC or Mobil 3309 fluid.
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2018 RAM 4500 Chassis Tradesman Crew Cab 60” C/A 4WD, 6.7L Cummins, AISIN AS69RC Transmission, 4.10 Axle Ratio, Chrome Appearance Group, Keyless Entry, Fog Lamps, Chrome Tubular Steps, 52+22 gallon fuel tanks, 5.0 Radio, Single Disc CD Player, 225/70R19.5 Firestone FD690’s, Aluminum Wheels, Parkview Backup Camera, Trailer Brake Controller. Equipped with a CM SK Series flatbed w/B&W Turnover Ball. Purchased new April 23, 2018. Currently : 196,704 miles and 3,437 hours as of January 27th, 2020 (Average Miles Per Hour = 57.2)

Last edited by gsbrockman; 01-01-2020 at 11:26 AM.
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post #6 of 11 (permalink) Old 01-05-2020, 08:39 PM
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I have a 2018 3500w/aisin tranny. It feels like the torque converter is locking in as the tranny is shifting into 4th gear. If you watch the tach you can see the tach jump twice as it shifts into 4th. Has The dealer says they can’t see anything wrong, because there are no codes. You can feel it not shifting smoothly.
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post #7 of 11 (permalink) Old 01-05-2020, 09:54 PM
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What you’re experiencing is “shift flare”. Working as designed.....no issue.

2018 RAM 4500 Chassis Tradesman Crew Cab 60” C/A 4WD, 6.7L Cummins, AISIN AS69RC Transmission, 4.10 Axle Ratio, Chrome Appearance Group, Keyless Entry, Fog Lamps, Chrome Tubular Steps, 52+22 gallon fuel tanks, 5.0 Radio, Single Disc CD Player, 225/70R19.5 Firestone FD690’s, Aluminum Wheels, Parkview Backup Camera, Trailer Brake Controller. Equipped with a CM SK Series flatbed w/B&W Turnover Ball. Purchased new April 23, 2018. Currently : 196,704 miles and 3,437 hours as of January 27th, 2020 (Average Miles Per Hour = 57.2)
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post #8 of 11 (permalink) Old 01-05-2020, 10:27 PM
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The biggest thing with the Aisin is just keep a steady acceleration and not try to accelerate as it is shifting.

[SIGPIC][/SIGPIC]
3500 MegaCab Dually 4X4
6.7L Aisin Trans
4:10 Gears
385 Hp 930 Tq
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post #9 of 11 (permalink) Old 01-06-2020, 10:25 AM
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What is a shift flair? Why is it only when the tranny is shifting in to 4th gear?
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post #10 of 11 (permalink) Old 01-08-2020, 12:28 AM
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Just to add, the best price on the fluid I have found it's summit racing ( 30 ish per 6 pack qts ) and if you spend enough free shipping.

The maint on the tranny is beyond easy imo

I grabbed a spare gasket for mine ( I bought mine at 49k and recently hit the 60k mark ). Did not need it (so far...) everything I read stated the gasket was reusable.

The filter is beyond insane.... 80 $ but I don't trust aftermarket..... wish we could get a aisin pn.....


Frankly the Cummins and aisin have been some of the easiest maint I have ever done on cars/ trucks........ love them both.... with exception of the first oil change.... first time diesel owner.... should of done it cold with a fumoto waiting for me.......
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post #11 of 11 (permalink) Old 01-17-2020, 11:04 PM
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Congrats on your new ride. I just picked up a used 18 DRW CC Longhorn with the ASIN and 4.10's. I love the way the ASIN shifts vs the 68. Seems like more of a solid feel to me and the stock air ride is nice. My 17 with the 68 was a great truck and never gave me any issues. I was a little sad to see her go.

18 3500 Laramie Longhorn 6.7 (AISIN) 4.10's CC,LB, DRW. All stock for now.
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