And a 4k curb weight I thought mine was a dog with the 3.7 and 3.73s. S/B interesting to see if it can get out of its own way.

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<b>DonC AKA FreeJeep</b>
'03 Freedom Edition
Armored, Locked and Loaded
'67 CJ5 - stockish for now

Yeah, I think it's going to be really sluggish off the line with the 3.21's. Also has an EGR, which could help mpg, but will probably hurt performance a little too.

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June 2001 Liberty Limited 4X4
Frankenlift II Premium, Al's Upper Arms, 245/75R16 C Silent Armors on Moabs, RL Skink Super Sliders, Rear DTT, Riddler Diff Cover, Fastman Throttle Body, Profinish-Proglass Hood, Borla Dual Outlet Exhaust, TransGo Reprogramming Kit, APS Stall Converter, 4.10 Gears, B&G Chrysler PCM, Lots of Line-X, etc...

I discussed this in the KK section, Someone pointed out it was a misprint because other builds show 3.73. I called them and they told me 3.73

Yeah just a misprint...

You'll notice the MPG for HWY didn't go up which indicates no change in rear gear ratio or final drive for that matter.... Still pretty porky looking though

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02 Liberty Limited
Silver Outside & Taupe Inside
Heated Seats, Sunroof & Infinity speakers
USA Spec I-Pod adaptor, Mopar Sub, Garmin GPS
Tow Package, Select-Trac
Rock Rails, Tow Hooks

Good that it's a misprint. That would have been terrible. Anyone know if the 9.7:1 compression ratio is a misprint too?

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June 2001 Liberty Limited 4X4
Frankenlift II Premium, Al's Upper Arms, 245/75R16 C Silent Armors on Moabs, RL Skink Super Sliders, Rear DTT, Riddler Diff Cover, Fastman Throttle Body, Profinish-Proglass Hood, Borla Dual Outlet Exhaust, TransGo Reprogramming Kit, APS Stall Converter, 4.10 Gears, B&G Chrysler PCM, Lots of Line-X, etc...

Isn't that what the current 3.7 is for compression too? (it's a carry over engine)

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02 Liberty Limited
Silver Outside & Taupe Inside
Heated Seats, Sunroof & Infinity speakers
USA Spec I-Pod adaptor, Mopar Sub, Garmin GPS
Tow Package, Select-Trac
Rock Rails, Tow Hooks

Maybe, I thought the older ones were 9.1:1. Or is that a misprint?

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June 2001 Liberty Limited 4X4
Frankenlift II Premium, Al's Upper Arms, 245/75R16 C Silent Armors on Moabs, RL Skink Super Sliders, Rear DTT, Riddler Diff Cover, Fastman Throttle Body, Profinish-Proglass Hood, Borla Dual Outlet Exhaust, TransGo Reprogramming Kit, APS Stall Converter, 4.10 Gears, B&G Chrysler PCM, Lots of Line-X, etc...

You are correct [as I suspected] that the current engine is 9.1:1 compression. I check two seperate model years 2002 and 2004 just to make sure... If it's not a misprint, maybe the Chrysler powertrain engineers bumped the compression a half a point to try and recurve some of the power? I don't think that they would go through all that trouble just to get the same HP/Torque figures though so I'm guessing it's a missprint as well.

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02 Liberty Limited
Silver Outside & Taupe Inside
Heated Seats, Sunroof & Infinity speakers
USA Spec I-Pod adaptor, Mopar Sub, Garmin GPS
Tow Package, Select-Trac
Rock Rails, Tow Hooks