Confused about gears
04-02-2012, 07:21 PM
#42
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04-02-2012, 07:22 PM
#43
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Originally Posted by troyboy
comes from your post: "...But hey it's all calculated so it MUST be correct than real experience. "
04-03-2012, 03:07 PM
#45
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Originally Posted by troyboy
What is your rpm on the highway with overdrive off with the 5.13s and 35s? I imagine you don't need to do that but if you are pulling a boat you might.
04-03-2012, 04:06 PM
#46
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I don't usually run with with overdrive off so really don't have a good answer for you but 3500 RPM at 65 mph. I pull a 5x8 utility trailer with lawn equip twice a week and leave OD on and I can maintain speed no problem. Real world speaking not a bunch of charts. Drove a 4:88 Jeep and after installing my 5:13's he swapped for the same set up.
I just recently switched from 34" heavy toyos to 33" light duratracs thinking it would help pullin the boat up this one steep hill. I couldn't tell a difference at all. Mind you the overall rpm difference doing that was only 66 rpm.
04-03-2012, 09:22 PM
#47
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I DD my Jeep (All my gear is in my profile) and have 5:13's and 35's. I also wheel Race point and points south and am all over the cape in summer. Trust me the ONLY gear you need are 5:13's. Longhand I avg 18 Hwy and 15 around town to/from work backroads with big hills. With a 6-speed 4:88's on a '07-11 Jeep no doubt.
Now for strength ... meh I went 5:13's for strength reasons as 5:36's on a D44 front end is sketch with a teeny pinion. Now on a Dana 30 front the same holds true for 5:13's so some opt for 4:88's for the same reason. in terms of transmission options 6 speeds usually go 4:88's anyhow due to enherent gearing
Now for strength ... meh I went 5:13's for strength reasons as 5:36's on a D44 front end is sketch with a teeny pinion. Now on a Dana 30 front the same holds true for 5:13's so some opt for 4:88's for the same reason. in terms of transmission options 6 speeds usually go 4:88's anyhow due to enherent gearing
Sorry I double checked today and O.D OFF I am @ 3250~ish @ 65 and 2250~ish O.D On @ 65