Best Gearing Combo w/ Ripp Kit for a 6 Speed Daily Driver?
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JK Newbie
Joined: Mar 2010
Posts: 55
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From: Portland, Oregon
Best Gearing Combo w/ Ripp Kit for a 6 Speed Daily Driver?
Driving a 6 speed manual in an 08 JKU and wondering how a supercharger will effect my regear. Will it be best paired with a 4.56 to get the best mileage as a daily driver but performance on inclines? Has anyone regeared AND thrown a supercharger on in a manual transmission? It's hard for me to wrap my head around how the supercharger will effect what gears to use. Maybe I supercharge it and then like my 373's? I have now idea.. I was told not to do both at the same time, but I'm not sure where to start. It sounds like 4.56 and RIPP may be the best combo and 4.88 and RIPP would be a high revving gas sucker. I'm just looking to get more power between 40 to 75 mph. It is slow off the start and I can deal with that but the worst for me is downshifting to 4th and sometimes 3rd on the highway to climb the grades here in Oregon!! I don't want to gear so that I lose a ton of top end either.. I plan on doing both if need be but am thinking I should start with gears? I have ARB Lockers to install so am likely gonna get them both done at once. Can anyone explain how the RIPP supercharger will effect my ideal choice in gearing please? Gracias
JK Freak
Joined: Sep 2009
Posts: 553
Likes: 1
From: Houston, TX
You didn't mention what tire size you are or plan on running.
I regeared to 4.88 with 35s over 4 years ago and installed the Ripp gen2 kit last year. I feel it is a well matched system. The Ripp sc doesn't really kick in til higher rpms so the gearing helps. Rpms get a bit high over 70-75 mph but the power tradeoff is well worth it.
If i would have done gears and sc at the same time i may have done 4.56 but I'm very happy I had the 4.88s for those intervening 3 years.
08 6 speed. 35s, 4.88, Ripp Gen2 intercooled.
I regeared to 4.88 with 35s over 4 years ago and installed the Ripp gen2 kit last year. I feel it is a well matched system. The Ripp sc doesn't really kick in til higher rpms so the gearing helps. Rpms get a bit high over 70-75 mph but the power tradeoff is well worth it.
If i would have done gears and sc at the same time i may have done 4.56 but I'm very happy I had the 4.88s for those intervening 3 years.
08 6 speed. 35s, 4.88, Ripp Gen2 intercooled.
Thread Starter
JK Newbie
Joined: Mar 2010
Posts: 55
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From: Portland, Oregon
That helps a TON! Thanks 
I'm running Nitto 35's and a 4" Superlift. That's what I'm wondering.. Since I plan on doing both around the same time I am thinking the 4.56's might be better suited. I understand they may not be ideal if you are only planning on regearing and not supercharging.. Good stuff!
I'm running Nitto 35's and a 4" Superlift. That's what I'm wondering.. Since I plan on doing both around the same time I am thinking the 4.56's might be better suited. I understand they may not be ideal if you are only planning on regearing and not supercharging.. Good stuff!
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Joined: Jul 2007
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From: New York
That helps a TON! Thanks I'm running Nitto 35's and a 4" Superlift. That's what I'm wondering.. Since I plan on doing both around the same time I am thinking the 4.56's might be better suited. I understand they may not be ideal if you are only planning on regearing and not supercharging.. Good stuff!
I'm running Nitto 35's and a 4" Superlift. That's what I'm wondering.. Since I plan on doing both around the same time I am thinking the 4.56's might be better suited. I understand they may not be ideal if you are only planning on regearing and not supercharging.. Good stuff!
JK Freak
Joined: Sep 2009
Posts: 553
Likes: 1
From: Houston, TX
Originally Posted by Orko
What about 4:10?
I took a road trip last week with my 4.88s and 35s and 75 mph is a good top cruising speed for me. So again, 4.56 and 35 tires is a great combo.