Cummins12V98
on the road
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Joined: 06/03/2012
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larry barnhart wrote:Cummins12V98 wrote:blt2ski wrote:I'm Rick James wrote:transferred wrote:I'm Rick James wrote:
I'm sure the 68RE is an adequate transmission, as is the Aisin. There are those that preach the "MDT" moniker for the Aisin but that usually devolves into semantics. Bottom line is that they are all (regardless of brand) fairly decent transmissions that none of us will be able to quantify their strengths or weaknesses.
So the Aisin is not a MDT trans? Please elaborate.
I put my money where my mouth is and spent the extra for the Aisin, I'm an SRW but been right up to 25k GCWR and at that weight I like to know I have a trans with 140 lbs for metal in it than the 68RFE. For the DRW guys towing at near 40k, it's cheap insurance and a no brainer.
Now, people who tune their trucks is a different matter....they should've bought a Mustang
Feel free to put whatever acronym or label on your transmission you like. If the Aisin is a MDT transmission, cite what MDT utilizes the AS69RC.
I opted for the Aisin simply because it allowed for greater hp/ torque and I did not like the 68RFE in my '12 Ram.
One MDT is the 45 and 55 series Rams. BUT, not sure of any others.
As you Rick notes, ALL the current transmissions in the pickup lineup are way the heck better than 30 years ago, even 10-15 years ago. Take your pick, do not look back.
With this in mind tho, I personally would take the aisin, only because as I stated earlier, the first gear is lower, so you have more take off gearing etc for low speed maneuvering. The difference in OD and DOD is not enough to worry about. But stalling out on a steep grade can be an issue loaded heavy enough.
marty
I have not towed the new MS but I did tow the 07 MS twice with the 15 RAM with Aisin. It really gets 30K rolling easily compared to my 11RAM with 68RFE. To be fair the 11 had 3:42's. Still I know there is a big difference with the Aisin.
One thing that really impressed my was I took Conway Hill about a 5% grade on I-5 NW WA on cruise at 60 about 1/2 way up the trans downshifted to 5th without dropping 2-3 mph before downshifting like the 68RFE would. I was surprised it downshifted so seamlessly.
What your truck does is how I tow with our truck but I hit the button for a downshift because the Allison and duramax seems to want to keep pulling in high gear and of course lose some speed.
chevman
With the 11 I would hit the downshift toggle before the speed dropped and that gave me something to do while towing. Now with this new trans I may get bored if it does everything for me ![[emoticon]](https://forums.goodsamclub.com/sharedcontent/cfb/images/frown.gif "frown")
2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"
"HeavyWeight" B&W RVK3600
2016 MobileSuites 39TKSB3 highly "Elited" In the stable
2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD
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GBuilders
Boerne TX.
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Joined: 11/02/2004
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I love my Aisin with the 3:73. I wasn't planning on buying a new truck until I saw the left over 2014 and it just happened to have the Aisin. I'm happy I did and it's a joy to tow with.
2005 Jayco Eagle 305 BHS 5th wheel
New truck: 2019 Ford F-250 power stroke platinum 4x4
Former truck: 2014 Ram Megacab DRW Laramie 4x4 6.7/Aisin 6 speed 3:73
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rch10007
Clarksville, TN
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If it helps... I have a 5 speed Aisin trans in my 4wd '99 Jeep Cherokee. It's got 260K miles on it. I've never had an issue with it. Just changed the gear oil in it and all was clean and clear...
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transferred
CA
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Joined: 10/12/2010
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I'm Rick James wrote:transferred wrote:I'm Rick James wrote:
I'm sure the 68RE is an adequate transmission, as is the Aisin. There are those that preach the "MDT" moniker for the Aisin but that usually devolves into semantics. Bottom line is that they are all (regardless of brand) fairly decent transmissions that none of us will be able to quantify their strengths or weaknesses.
So the Aisin is not a MDT trans? Please elaborate.
I put my money where my mouth is and spent the extra for the Aisin, I'm an SRW but been right up to 25k GCWR and at that weight I like to know I have a trans with 140 lbs for metal in it than the 68RFE. For the DRW guys towing at near 40k, it's cheap insurance and a no brainer.
Now, people who tune their trucks is a different matter....they should've bought a Mustang
Feel free to put whatever acronym or label on your transmission you like. If the Aisin is a MDT transmission, cite what MDT utilizes the AS69RC.
I opted for the Aisin simply because it allowed for greater hp/ torque and I did not like the 68RFE in my '12 Ram.
Ram 4500 and Ram 5500. Hopefully this information clears your confusion on the subject.
05 Ram 3500 SRW QCSB Laramie 4x4 Cummins, 610lbs, 23k GC, 9.9k GV
(totaled) 16 Ram 3500 SRW RCLB SLT 4X4 Cummins Aisin, 900lbs, 25.3k GC, 11.5k GV
06 F550 4x4 PSD, 570lbs, 33k GC, 19.5k GV
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FishOnOne
The Great State of Texas
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Don't let the Nissan Titan confuse you either
'12 Ford Super Duty FX4 ELD CC 6.7 PSD 400HP 800ft/lbs
"250k Miles"
'16 Sprinter 319MKS "Wide Body"
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I'm Rick James
Reno, NV, USA
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Joined: 10/18/2004
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transferred wrote:I'm Rick James wrote:transferred wrote:I'm Rick James wrote:
I'm sure the 68RE is an adequate transmission, as is the Aisin. There are those that preach the "MDT" moniker for the Aisin but that usually devolves into semantics. Bottom line is that they are all (regardless of brand) fairly decent transmissions that none of us will be able to quantify their strengths or weaknesses.
So the Aisin is not a MDT trans? Please elaborate.
I put my money where my mouth is and spent the extra for the Aisin, I'm an SRW but been right up to 25k GCWR and at that weight I like to know I have a trans with 140 lbs for metal in it than the 68RFE. For the DRW guys towing at near 40k, it's cheap insurance and a no brainer.
Now, people who tune their trucks is a different matter....they should've bought a Mustang
Feel free to put whatever acronym or label on your transmission you like. If the Aisin is a MDT transmission, cite what MDT utilizes the AS69RC.
I opted for the Aisin simply because it allowed for greater hp/ torque and I did not like the 68RFE in my '12 Ram.
Ram 4500 and Ram 5500. Hopefully this information clears your confusion on the subject.
Ah yes, so the G56 & 66RFE are MDT transmissions and the 6.4 Hemi is a MDT engine? There is no confusion on my part, it's semantics.
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mpierce
Scranton, ND
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I love the Aisin in my 2014 Dually! Is it worth it? Only you can decide that.
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Bedlam
PNW
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You need to consider what load you are carrying and how often. If you tow only on major holidays and otherwise use the vehicle for commuting or it sits in storage, you may not need the Aisin even though you may have a heavy load. We go out often April through October and are usually crossing mountains, so we have the Aisin. November through March we avoid towing through snowy mountain passes, but we still camp in the low lands and at sea level. We still have coastal ranges to cross, but these are easy compared to what we do during other parts of the year.
Chevy Sonic 1.8-Honda Passport C70B-Host Mammoth 11.5-Interstate Car Carrier 20-Joyner SandViper 250-Kawasaki Concours ZG1000-Paros 8' flatbed-Pelican Decker DLX 8.75-Ram 5500 HD
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Frostbitte
Edmonton
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I've never had the Aisin or driven one. I do have the 68 in my 2011 and I love it. Combined with the exhaust brake, it's awesome. My previous truck had the 545 in it so it's a night and day difference. I have no issues with it as a somewhat daily driver or towing our 13000 lbs 5'er. It doesn't overheat, it shifts pretty smoothly and the electronic range select is helpful when descending really steep hills. I also have a 4.10 rear gear so that certainly helps. ![[emoticon]](https://forums.goodsamclub.com/sharedcontent/cfb/images/smile.gif "smile")
If I were to buy another RAM, I'd definitely give the Aisin a try not only because I tow heavy during the summer but also for bragging rights. I mean who doesn't want to say they've got a 385/865 Cummins! LOL. Pullin in to the family gathering/campsite and telling them to put that in their pipe and smoke it. LOL!
Honestly, no complaints about my 350/650 Cummins with the 68. It's a great combo so I can only imagine what the newer ones are like.
2011 RAM 3500 Laramie 4x4 6.7 Cummins 6-speed Auto 4.10
2004 Prowler 275 CKS (Sold)
2014 Sabre 36QBOK-7 5th wheel
2016 Forest River 8 x 20 Cargo Trailer
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gtsum
Virginia
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I have a 14 with the 68 Trans towing 15500 or so. I am close to weight limits and if I go to a dually I will be going with the aisin and 3.73 gears (vs my 3.42). Seems like I could use a bit more off the line to get him going
2015 Fuzion 345 Chrome
2014 Ram Megacab 3500 CTD Laramie
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