Gears - affecting my plans
01-21-2009, 04:37 PM
#11
JK Super Freak
Join Date: Jul 2008
Location: downingtown, PA
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Are you sure you have 3.21 gears? 2007 autos came with 4.10 gear in auto, 3.21 in manual. then in 2008, they went to 3.73 in the auto and 4.10 in Rubicons only (you may have received the bump to 4.10 with trailer pkg as well.)
I had both, an 07 manual with 3.21, and an 08 auto with 3.73. (I was very upset to find out I didnt get the 4.10's)
also, I running 35's with the 3.73, while not great, you really dont need to upgrade. I would think you could run 4.10 with the 37's just the same... that could eliminate your issue and allow you to upgrade the axle when your ready.
I had both, an 07 manual with 3.21, and an 08 auto with 3.73. (I was very upset to find out I didnt get the 4.10's)
also, I running 35's with the 3.73, while not great, you really dont need to upgrade. I would think you could run 4.10 with the 37's just the same... that could eliminate your issue and allow you to upgrade the axle when your ready.
01-21-2009, 07:00 PM
#13
JK Newbie
Join Date: Mar 2007
Location: Utah
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I have felt your pain three times already, twice with TJs and once with the JK and now I have an LJ Rubi that is still stock. It all is a ripple effect except the lift (technically).
You can do the lift with out changing any gearing or tire size, but your rig will look really bad with stock tires. Soooo
If you lift, you will want to put on larger tires.
Larger tires will require regearing if you want to even come close to driving on the highway.
Regearing, 5.13s is a must for an automatic and if you are really planning to run 37s, which is what I run, then I would put in 5.32s.
But to fit 5.13s or bigger you will need to upgrade the front to a D44.
Bottom line, to run 37s, you need to do the lift, gears and front axle all at once. The lockers can come later. If you are really goning to do serious wheeling you might want to look into just putting some D60s under it and be done with it.
Remember that all it takes is money!
You can do the lift with out changing any gearing or tire size, but your rig will look really bad with stock tires. Soooo
If you lift, you will want to put on larger tires.
Larger tires will require regearing if you want to even come close to driving on the highway.
Regearing, 5.13s is a must for an automatic and if you are really planning to run 37s, which is what I run, then I would put in 5.32s.
But to fit 5.13s or bigger you will need to upgrade the front to a D44.
Bottom line, to run 37s, you need to do the lift, gears and front axle all at once. The lockers can come later. If you are really goning to do serious wheeling you might want to look into just putting some D60s under it and be done with it.
Remember that all it takes is money!
01-21-2009, 09:21 PM
#14
Why throw all that money away on replacing parts with other parts. You know what you want, do it right the first time. All that money wasted on stage 1 could have been spent on stage 2 from the start and why gear and lock the axles you want to get rid of anyway more wasted money. To lock and gear both axles would be about $3800 that could almost cover one of the dana 60s. Just my 2 cents
If you are the kind of guy that is getting a shop to install a truckload of stuff you just ordered out of the q-tec catalog (nothing wrong with that) I say save up or Credit card it and do it all in one swoop. I am poor, have to do all my own work, and enjoy building my rig into different levels of capability. I would be saving and mall crawling for years before getting to do anything more than a beginner trail if I had to do everything I wanted all at once.
01-22-2009, 04:37 AM
#15
JK Enthusiast
Join Date: Nov 2008
Location: Grapevine, Texas
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Im feeling your pain! That was my delema too... I bought my Jeep last weekend with the same idea as you. I had my budget all planned out before I purchased the jeep. Very frustrating, but I've decided to suck it up and buy the Currie D60. I won't have any regrets later. Maybe I'll do the D60 rear too? I'll decide on that today. You have to have a good foundation. I guess the supercharger will have to wait.... Maybe.