- Joined
- Nov 30, 2001
- Messages
- 6,925
- Reaction score
- 514
- Points
- 113
- Location
- Gnaw Bone, Indiana
- Vehicle Year
- 2007
- Make / Model
- Toyota
- Engine Size
- 4.0
- Transmission
- Manual
You'll go about 2.5x slower in each gear. So if you like to go 60 in 5th, at that same rpm in low-5th you'll go 24mph. I think ~35 would be your top redline-limited speed.
The gear spacing is the important thing while towing and it doesn't change in low-transfer. Downshifting into the best gear is the right thing to do--keeping the engine at around 3,000+ on hills so it will make enough power to climb them.
To add ratios for a more exact match between engine and load you need a gear splitter--an auxillary tranny with a narrow gear that "fits" in between the spacing of your current gear box. A Gear Vendors, for instance, has a .8 ratio. Your top 3 gears now are .79--1.00--1.50. With a splitter they would be .79--.80--1.00--1.20--1.50. 4th-over would be useless, but that 1.2 3rd-over might be nice if your engine were running out of ass in 4th and you didn't want to wait for it to slow down enough to use 3rd.
The gear spacing is the important thing while towing and it doesn't change in low-transfer. Downshifting into the best gear is the right thing to do--keeping the engine at around 3,000+ on hills so it will make enough power to climb them.
To add ratios for a more exact match between engine and load you need a gear splitter--an auxillary tranny with a narrow gear that "fits" in between the spacing of your current gear box. A Gear Vendors, for instance, has a .8 ratio. Your top 3 gears now are .79--1.00--1.50. With a splitter they would be .79--.80--1.00--1.20--1.50. 4th-over would be useless, but that 1.2 3rd-over might be nice if your engine were running out of ass in 4th and you didn't want to wait for it to slow down enough to use 3rd.