My aisin trans...

[dieselshadow]

There certainly is a noticeable shift delay between F-N-R. But everytime I drive it, you can tell this is a true medium duty trans, not a light duty automotive trans. It matches the Cummins quite well in this application. I'm not slamming the 68RFE at all, just agreeing there are large differences between the two. I'm happy with my Aisin and choice to own one.

 

[RVTRKN]

They must have changed the programming then, cause I shifted to quickly from F to R and didn't like the reaction I got. I just chaulked it up to learning my new truck, and remind myself to slow down shifting.

 

[TFucili]

They must have changed the programming then, cause I shifted to quickly from F to R and didn't like the reaction I got. I just chaulked it up to learning my new truck, and remind myself to slow down shifting.

When safety permits I have learned to pause in neutral, or my Aisin makes a VERY harsh D-R or R-D change. Same pause before Park.

 

[Cummins12V98]

Poor choice of a word on my part!
This truck really runs well and the shifts are crisp and strong. Smoooooth!

Thats BETTER!!!

 

[Cummins12V98]

I learned many years ago from Bill Kondolay with my first DTT Trans. NEVER go directly from R-F or F-R without a pause in neutral.

When I know I am going to hit reverse I pop into neutral and apply brake to a stop and with foot on brake I place in reverse. Changing gears my foot is always on the brake pedal. When parking truck I stop n pop into neutral then directly to park.

 

[Wiredawg]

I know we all have experiences with Ram and trannies offered with it. On my 09 Ram 4500, I ran it on MADS ME (Middle East) level 5 tune deleted and the Aisin performed very well, solo and towing. To me, 90 HP added is big power. It adapted well.

So, now I'm getting more into theory based mostly on experience. I believe what makes the Aisin adapts based upon data inputs from the engine. So that is why I believe my 09 with 90 HP added and my 17 5500 with 60HP added drive so well. Both trucks weigh(ed) over 12KLbs solo, and I'm still impressed how smartly the move out in traffic and on the highway. Remember I've owned C&Cs that are derated, so when I add power, I'm adding to bring up to Cummins HO HP/TQ levels, so I'm not the test of adding excessive power to the Aisin.

My BIL just had 19 F250 crew cab 4x4 delivered with utility bed. We're going to drive it later and I'm going to post my impression of it.

Cheers, Ron

 

[SnoKing]

They must have changed the programming then, cause I shifted to quickly from F to R and didn't like the reaction I got. I just chaulked it up to learning my new truck, and remind myself to slow down shifting.

It sure seems that they changed something in the programming. My 2015 has one little quirk, when rolling up to at stop sign on an up hill and turning left or right it will look for 1st gear for a second and then shift down. No bang into gear involved. A few TSB reflashes the first year improve some gear hunting out on the road.

The 5500-6000+ foot elevation issue(does not happen at lower elevations) of boost hanging at 10 psi at 60 in 5th gear towing on cruise control going up a small hill and truck slowing 3-4 MPH before it down shifts and takes off again is still there. Speeding up to 63-63 MPH cures this. Never had time to stop at a dealer in high country and have them spend the time to go on the road and show them the issue on their wiTech. Several others here have report the same 10 PSI stuck boost issue.

 

[SnoKing]

I learned many years ago from Bill Kondolay with my first DTT Trans. NEVER go directly from R-F or F-R without a pause in neutral.

When I know I am going to hit reverse I pop into neutral and apply brake to a stop and with foot on brake I place in reverse. Changing gears my foot is always on the brake pedal. When parking truck I stop n pop into neutral then directly to park.

Bill chewed me out in his parking lot when I backed out and went to D with the truck still rolling backwards on a test drive.

He always likely the way my truck drove and performed with Jammer 1's, Edge Comp in EZ mode and 4" exhaust. But accused me of being a hot rodder. I have always enjoy at rush of power, maybe that is my my Aisin works the way it does, as I put my foot in the 2015 all the time, remembering to roll in to it! We go out of our park here in AZ and have to cross from the merge lane across two lanes of high way 60 and hit a left turn lane in the medium a short distance down the road.

 

[RVTRKN]

After driving manuals with the 04.5 2500 (better NV5600) and the 07 C&C G56 (not my favorite), I learned to keep truck in neutral foot off the clutch until green light. I will get into the practice of doing whats recommended, going to N and foot on brake before shifting either direction, thanks for the info. AND MERRY CHRISTMAS

 

[Ozymandias]

I will get into the practice of doing whats recommended, going to N and foot on brake before shifting either direction, thanks for the info. AND MERRY CHRISTMAS

I don't think that matters that much anymore in a fully electronically controlled transmission.
Back in the days when we had cable shifting the Valve body, then the driver really was in control of the shift.
But today on the wired units, don't you think that the engineers programmed the PCM in a way that even the DAU can not destroy it? I guess so.
Merry Christmas to you to.

 

[RVTRKN]

Well maybe so, however it sounds like good advise, kinda like allways putting on the emergency brake regardless, Manual or Auto.

 

[RVTRKN]

Also I always go to neutral, apply PB, then let the weght settle on the brake, then go to Park.

Well maybe so, however it sounds like good advise, kinda like allways putting on the emergency brake regardless, Manual or Auto.

 

[AH64ID]

Also I always go to neutral, apply PB, then let the weght settle on the brake, then go to Park.

As do I.

I’ve also gotten the wife trained to do the same.

 

[RVTRKN]

As do I.

I’ve also gotten the wife trained to do the same.

Ya, still working on that one,

 

[Learjet]

rolling shift not good...shift from R to D or D to R after truck stops...no issues.

 

[Tuesdak]

When safety permits I have learned to pause in neutral, or my Aisin makes a VERY harsh D-R or R-D change. Same pause before Park.

Nevermind "D" to "R"... Just taking it out of "D" into "N" when coming to a stop is a pretty good "Bang" as the driveline is wound up pretty tight. I am surprised at how hard the truck is pushing through the brakes coming to a stop and it's a violent change from gentle to near sudden stop when you drop it into "N" at like 5 MPH. Damn automatic "Push", tight converters, and the ECM's programmed desire to keep too much throttle on to keep the driveline from clunking. At least it's consistent and predictable unlike one lemon GM POS I owned.

Kinda miss the MT... then I remind myself it would just grind refusing to get into reverse if in a hurry.

Sometimes esp. with these L O N G pickups you need to make a PDQ 3 point U-Turn with a short break in traffic. So the column shifter gets the win here over some "Numb and Blind" rotary dial that you have to take your eyes off the road to make a 3 point U-Turn. If I can't shift "D-R-D" by feel alone I ain't buying it, period. I give the 1/2 tons with that rotary knob the GM Numb (like GM mush brakes) feel award!

 

[DeansRedRam]

I hear yah. I researched everything until my eyes popped out. I only got the 30 hp bump, but dang, it dont feel it feels more. I'm sure the Ebay ones are good, but hard to know where they are coming from.
You can see that Ray has put in some time into these trucks and delivers a stellar product, along with quality customer service. I couldn't he happier, and let me tell you it's a new truck with out the 60- 80k price tag!! It was yet another reason I opted for an aisin equipped truck.
We just did my neighbors truck today, and he flipped out, he went full blown, 30-200 hp and 5" exhaust. That thing is a beast. Head studs Friday for him!

That’s about all I need/want. I don’t really want to risk blowing anything up, I can’t afford that. The Aisin gives me a sense of security with that. I think I may have to look more in depth about all of the options.

 

[DeansRedRam]

While I am a big Aisin fan, the 68RFE is a better trans for tuning and for added HP.

AFIK there isn't any aftermarket tuning for the AISIN as it's a separate controller. The AISIN is very robust, but doesn't like a lot of added power. It doesn't break, but it doesn't drive the same either. The trans will put the truck in limp mode, similar to the Allison/DMAX combo.

Bottom line is if you want to play with added power then get the 68RFE, hands down.

I have heard that and from research proves true, the 68rfe is great for performance, but I don’t need a ton of performance just a little bump with some nice sound and I’m happy.

 

[DeansRedRam]

I’ll say the 68rfe has been a stellar performer for me here in Alaska. They plow like a beast and tow great. The Aisin is certainly a higher quality trans but in my opinion isn’t worth the premium. One gripe I can add to the list is the slow reaction time when shifting F-N-R. It takes forever to engage compared to the 68rfe or even my 47RH. If I were going to order one for plowing it would NOT have an Aisin.

I always come to a complete stop myself in my Aisin, and it does feel sluggish to engage from R to D or P to D, I haven’t noticed which direction it’s slow from but coming from my 47RE as a daily driver, it’s sluggish in direction change.

 

[TFucili]

Nevermind "D" to "R"... Just taking it out of "D" into "N" when coming to a stop is a pretty good "Bang" as the driveline is wound up pretty tight. I am surprised at how hard the truck is pushing through the brakes coming to a stop and it's a violent change from gentle to near sudden stop when you drop it into "N" at like 5 MPH. Damn automatic "Push", tight converters, and the ECM's programmed desire to keep too much throttle on to keep the driveline from clunking. At least it's consistent and predictable unlike one lemon GM POS I owned.

Kinda miss the MT... then I remind myself it would just grind refusing to get into reverse if in a hurry.

Sometimes esp. with these L O N G pickups you need to make a PDQ 3 point U-Turn with a short break in traffic. So the column shifter gets the win here over some "Numb and Blind" rotary dial that you have to take your eyes off the road to make a 3 point U-Turn. If I can't shift "D-R-D" by feel alone I ain't buying it, period. I give the 1/2 tons with that rotary knob the GM Numb (like GM mush brakes) feel award!

Yes, the driveline is wound pretty tight. My truck barely fits in my garage, so I am inches from the wall. If I don't pause long enough in neutral for it to "unload", the truck will lurch ahead a bit when I ease off the brakes even when in neutral.