Two Vehicle Transmission
I have a 2000 Chev 1500 LS - 4.8 engine with automatic transmission and 263,000 miles on it - I tow a Jayco Ultralite that weights around 5000 lbs loaded. plus load in truck - Weights are under so I a...
Forum Discussion
The only way to lower your rpms is to have more power/torque to be able to hold the higher gears of the transmission.
I towed my #5000 TT with my 5.4 F150 with a 4 speed trans and it was in second gear pulling around 3500 rpms to go 50-55 mph.
Same TT with a Ecoboost F150 with the 6 speed trans and it's going up the same grades in 4th pulling 2500 rpms going 60 mph..
The difference is the 5.4 only had 230 hp/330 tq while the Eco has 365 hp/420 tq...
Simply adding the 6 speed would not help my 5.4.. It would still need the higher rpms to pull the load, since it only had so much power..
Same deal for you even if you could find an ECU to control the 6 speed trans for your combo.
Mitch
I towed my #5000 TT with my 5.4 F150 with a 4 speed trans and it was in second gear pulling around 3500 rpms to go 50-55 mph.
Same TT with a Ecoboost F150 with the 6 speed trans and it's going up the same grades in 4th pulling 2500 rpms going 60 mph..
The difference is the 5.4 only had 230 hp/330 tq while the Eco has 365 hp/420 tq...
Simply adding the 6 speed would not help my 5.4.. It would still need the higher rpms to pull the load, since it only had so much power..
Same deal for you even if you could find an ECU to control the 6 speed trans for your combo.
Mitch
