Front Diff. Gone - Need help understanding some things. (1 Viewer)

[rusty_tlc]

3.11 gears with an automatic would probably be as low as you would want to go. Lower than that and you would be redlining on the flat parts of the trail. Or constantly shifting between high and low range.

The automatic pretty much counts as an additional 2:1 reduction on the rocks. Doing the math 2x3.11 ~ 6.

6:1 gears are plenty low for all but the worst obstacles, stuff you are not likely to be doing in a 100.

 

[spressomon]

^ and to add: The HF2A case won't accept a larger gear...its physically at its maximum with the 3.12:1 gear set.

 

[bamabrock]

3.11 gears with an automatic would probably be as low as you would want to go. Lower than that and you would be redlining on the flat parts of the trail. Or constantly shifting between high and low range.

The automatic pretty much counts as an additional 2:1 reduction on the rocks. Doing the math 2x3.11 ~ 6.

6:1 gears are plenty low for all but the worst obstacles, stuff you are not likely to be doing in a 100.

How is the auto a 2:1 reduction?

 

[rusty_tlc]

It would be more accurate to say the torque converter provides the equivalent of a 2:1 reduction.

 

[spressomon]

torque converter = torque multiplier

 

[bamabrock]

It would be more accurate to say the torque converter provides the equivalent of a 2:1 reduction.

gotcha. I was reading on a tablet. I always liked a 3:8 ratio on the autos and 4;1-4:30 on manuals.

 

[LandCruiserPhil]

gotcha. I was reading on a tablet. I always liked a 3:8 ratio on the autos and 4;1-4:30 on manuals.

Having the Marlin 3.12 now I would take 3.8 without hesitation given the option.

 

[spressomon]

5.29 + 35" + Marlin's gearset

 

[LandCruiserPhil]

5.29 + 35" + Marlin's gearset

~3000 RPM at 75MPH
Is this ^^^what you get to look forward to?

 

[spressomon]

speed demon

 

[rusty_tlc]

A dual t-case set up would be nice. I like the 2.5:1, 4:1 or combined 10:1 options I have in my FJ40.