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Advntrbound

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I became very familiar with this chart over the past 2 years. Helped me decide between 4.88 or 5.13

Decided on 4.88
I think I've decided on the 4:88's as well. I have the MT.
 

redriderjf87

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I think some of the rpms may be off a little bit (I agree this is still a helpful chart, thanks for posting).

At least for my Willy's MT with 3.73s and 32s, I'm almost exactly at 2,000 rpm at 70 mph in 6th. Checked speedo against gps. Unless there was a 6th gear ratio difference in the wranglers at the time this was written..
 

Wheelin98TJ

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The automatic transmission chart is using the 6 speed auto overdrive ratio which is 0.79.

Our 8 speeds have a 0.67 8th gear ratio and a 0.84 7th gear.
 

Coldtoes

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The automatic transmission chart is using the 6 speed auto overdrive ratio which is 0.79.

Our 8 speeds have a 0.67 8th gear ratio and a 0.84 7th gear.
Agreed, I believe these charts were created based on the JK, so it isn't super accurate for ours.
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