Jeep tj 4.0 gear ratio chart
Please read up and become aware for future generations. The Jeep 40 engines can handle up to 376 horsepower and 475 ft-lb of torque.
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This means that the jeep 40 engines have a powerful and reliable engine that can be tuned to produce high levels of power from speeds below 3000 RPM while still being able to achieve good fuel efficiency figures during higher RPM ranges.
. This is because of such a high overdrive. This chart is based on 65 MPH and a gear ratio of 11 on a manual transmission in 4th gear. Front axle on all models but Rubicon Gear ratios.
Rear axle on all models but Rubicon D44 optional. Morris 4x4 Center is the Leading Destination for Jeep and 4x4 Enthusiasts. Yep could be 307 80 of YJs with the 40 have them 354 or 373.
As Im sure youve read normally youll see 456 gears recommended for 33s and the 5-spd. 513 is what you want for 35s with the 42RLE. 12 X 38 456 The below table can be used to get a rough idea on gear ratios.
4 Oct 12 2009. IMO a switch from 410 to 456 isnt enough of an improvement to warrant the time trouble and expense. He also has the auto.
1997-2006 Dana 30 181mm. Ad Shop And Save On Parts For Jeep Wrangler Cherokee CJ More. Guys I forgot that Revolution Gear recently introduced a 513 ratio RP for the front Dana 30 which is the way to go with 35s when you have the 42RLE.
A basic method to calculate is to mutiply 12 by your tire diameter. 605 5 on 45 bolt pattern Steel fill plug 1997-2006 Dana 35c 194mm. 307 355 373 410 456 Open carrier WMS to WMS.
Congenital Heart Disease is a reality for me BOTH of my children have it. Great friend of mine has a TJ Sport 00 with 35 claws he installed 456 and wished he would have gone with the 488 gears. For the 40 the 4spd auto and 33s many will recommend 488s for daily driving.
Make the necessary changes to your speedo by replacing your Jeep Speedometer Gear. 456s will work for 33s and the 4-spd auto but many on this forum have reported this setup leaves a little more gear to be desired. These calculations are assuming a manual transmission.
With an overdrive transmission your RPM in overdrive will be 15 to 30 less than indicated. Sorry for recommending 488 earlier earlier James I should have remembered that RGA now has 513 gears for the Dana 30. If you have an automatic transmission your RPM will higher due to slippage in the transmission and the torque converter.
The colors represent ideal RPMs at highway speeds 65. Jerry Bransford said. Quick question about TJ Tire size vs.
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