coloradolivin-REDW
Senior Member
In doing my research, it seems that I want the Aisin transmission too. That option adds quite a bit of towing capability. A Laramie dually CC with 4.10 and Aisin will tow 29,000 lbs. The same truck with the 68RFE tows in the 23,000 range. With a 3.73 and Aisin, it tows 23,000, The same truck with a 68RFE tows around 19,000.
I'm thinking I want the Aisin transmission and the 4.10 gears. That way I could tow just about anything I want. However, most trucks I have found on the dealer's lots are sporting the 3.42 gears. Some have the 3.73's, but the 4.10 geared trucks are hard to find here in Iowa.
Joe
We have the 3:42 with the 68RFE and it pulls just fine. Last trip to Denver, 3 hours through the mountains got 19.2 empty and pulling the coach home made 9.4. You will gain pulling capacity with the 3:73 and even more with the 4:10 as well as adding the Aisin. However, you will sacrifice gas mileage. So I guess it depends how much towing you will be doing.