Gears

[Trailabite]

Anyone running gears lower than 5.38's and driving on the street? Do you love it or regret it?

[Blue J]

I'm on 5.13's on my 37's. I was on the fence between these and 4.88's. I would appreciate more top end on the road. But I cruise comfortably around 70 mph. Is this for the "Mighty Mo" or for "Trailabite 2.0" ??

[flashover101]

Chuck, I’m on 4.88’s and 37’s and have plenty of torque and acceleration. Seems like a good combination 


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[Trailabite]

This is for the Jeep truck. I'm leaning towards 6.17's or 7.17 gear ratio. I don't plan on driving it too much on the road, but when I do I would like to be able to do at least 55 mph under 6k rpm lol. I did run the numbers on a gear calculator and looks like with the over drive gear in the 700r4 and running 42" tires it should run around 2200 rpm's at 55 and it would give me a crawl ratio around 75:1.

[8lugLJ]

This is for the Jeep truck. I'm leaning towards 6.17's or 7.17 gear ratio. I don't plan on driving it too much on the road, but when I do I would like to be able to do at least 55 mph under 6k rpm lol. I did run the numbers on a gear calculator and looks like with the over drive gear in the 700r4 and running 42" tires it should run around 2200 rpm's at 55 and it would give me a crawl ratio around 75:1.

what axles are you going to run that will allow for that deep of a gear?

[Trailabite]

This is for the Jeep truck. I'm leaning towards 6.17's or 7.17 gear ratio. I don't plan on driving it too much on the road, but when I do I would like to be able to do at least 55 mph under 6k rpm lol. I did run the numbers on a gear calculator and looks like with the over drive gear in the 700r4 and running 42" tires it should run around 2200 rpm's at 55 and it would give me a crawl ratio around 75:1.

what axles are you going to run that will allow for that deep of a gear?

D60 up front and a D70 at the other end.

[8lugLJ]

This is for the Jeep truck. I'm leaning towards 6.17's or 7.17 gear ratio. I don't plan on driving it too much on the road, but when I do I would like to be able to do at least 55 mph under 6k rpm lol. I did run the numbers on a gear calculator and looks like with the over drive gear in the 700r4 and running 42" tires it should run around 2200 rpm's at 55 and it would give me a crawl ratio around 75:1.

what axles are you going to run that will allow for that deep of a gear?

D60 up front and a D70 at the other end.

cool. i had no idea you could run that deep in a D60. Is it a LP only thing? Anyways, I run my 5.38s on the street (when it sees pavement) and just keep the OD off.

[Trailabite]

Researching: D60 LP 4.88 ring and pinion weighs 18 lbs, 7.17 weighs 26 lbs.

[Anvilsam]

FWIW my crawl ratio is right at 75 in first gear and most times it seems a little low for me so i end up doing most stuff in second.

[Trailabite]

FWIW my crawl ratio is right at 75 in first gear and most times it seems a little low for me so i end up doing most stuff in second.

If I go with 5.38's the crawl ratio is around 64 and change.

[Anvilsam]

FWIW my crawl ratio is right at 75 in first gear and most times it seems a little low for me so i end up doing most stuff in second.

If I go with 5.38's the crawl ratio is around 64 and change.

How many Hp’s?


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[Trailabite]

FWIW my crawl ratio is right at 75 in first gear and most times it seems a little low for me so i end up doing most stuff in second.

If I go with 5.38's the crawl ratio is around 64 and change.

How many Hp’s?


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290 maybe 300