Aisin transmission

I can't tell a major difference between my '12 Ram with the 68RE and my '14 Ram with the Aisin. My experience with the two transmissions has been positive and would have a difficult time quantifying or describing any differences worthy of the cost. With that said, I haven't pushed either transmission to any significant limits.

jus2shy wrote:
Gear ratio comparison

gear.....Aisin.....68RFE
1........3.75......3.23
2........2.00......1.84
3........1.34......1.41
4........1.00......1.00
5........0.77......0.82
6........0.63......0.63
R........3.54......4.45

As you can see, The Aisin has a lower first gear so it has better startability. Others like to say it has better spacing between the gears as well. It is roughly $3k mark-up for this transmission, but its biggest benefit is that it has PTO. So if you have designs for using the PTO provision, this is the only way to go aside from the G56 manual. Other than that, you get a modest bump in Torque and HP (370 --> 385 HP and 800 --> 865 lbft of torque). It is up to you to weigh this out.

I have no use for a PTO...I do have use for a truck with a medium duty Diesel engine strapped to a medium duty transmission, as I will be retiring and towing either the 5er in my sig. or a much heavier 5er all over the United States, (Good Lord willing)...

Again, having owned both and towed same 5er over the same terrain with both trannies, I like the Aisin..don't know or care about spacing of gears, but know how it act's towing in the mountains and it does great...worth the extra money to me, especially if it pay's off in the long run...heck, I'll take the extra 15HP and 65lbft of TQ

Actually one is charged $600 for the 68RFE and $2995 for the Aisin, so it's actually a $2395 add one....well worth going from a regular to a medium duty tranny, but that's just me..

Gear ratio comparison

gear.....Aisin.....68RFE
1........3.75......3.23
2........2.00......1.84
3........1.34......1.41
4........1.00......1.00
5........0.77......0.82
6........0.63......0.63
R........3.54......4.45

As you can see, The Aisin has a lower first gear so it has better startability. Others like to say it has better spacing between the gears as well. It is roughly $3k mark-up for this transmission, but its biggest benefit is that it has PTO. So if you have designs for using the PTO provision, this is the only way to go aside from the G56 manual. Other than that, you get a modest bump in Torque and HP (370 --> 385 HP and 800 --> 865 lbft of torque). It is up to you to weigh this out.

The AS69RC (Aisin), used in the 2013 and up Ram 3500's, was a newer model Aisin than what came in the 4500 & 5500 trucks at that time....

It's a medium duty transmission, which offers higher HP & TQ than a similar equipped Ram with the 68RFE or the G56 manual tranny....

I've owned a 10 and a 12HO Ram 3500 DRW, CC/LB/4X4 with 68RFE, one in Laramie trim, other in Longhorn trim...I now have truck in my sig...This truck seems to move the load a bit faster and has better gear shifting, in my opinion, but I personally think it's worth the extra that one will pay for it....having owned both the 68RFE and now the Aisin, towing the same 5er over the same mountains, I think it's worth the extra money...but just my opinion from being able to compare both as daily drivers and towing my 16,300# 5er.

Different gear ratios. Maybe not much but some different. Been used if the 4500/5500 trucks for several years with no major issues. It I were buying new it would probably be that one. The 68RFE is a really good transmission but......