HELP !! Parts needed to regear to 5.13 for 37x13.5r18 tires - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 6 Old 02-09-2015, 10:03 PM Thread Starter
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HELP !! Parts needed to regear to 5.13 for 37x13.5r18 tires

Hi all,

I own a '13 JK Unlimited Sahara and just received my 4 inch lift and new 37x13.5r18 wheel and tires. I was assisted by a 4wd.com wheel expert that the below list are the parts I need to regear to 5.13 to accommodate the 37 inch tires:

1- Dana 44 JK 5.13 G2 Ring & Pinion Set with Dana 44 JK Rear Master Installation Kit

2- Dana 30 JK 5.13 Reverse Rotation Ring & Pinion Set with Ring & Pinion Master Installation Kit

3- Inner Axle Seal

Is this correct ? would appreciate your kind assistance.

Best Regards,
Mahmood
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post #2 of 6 Old 02-09-2015, 10:06 PM
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Quote:
Originally Posted by Mahmood.alhujair View Post
Hi all,

I own a '13 JK Unlimited Sahara and just received my 4 inch lift and new 37x13.5r18 wheel and tires. I was assisted by a 4wd.com wheel expert that the below list are the parts I need to regear to 5.13 to accommodate the 37 inch tires:

1- Dana 44 JK 5.13 G2 Ring & Pinion Set with Dana 44 JK Rear Master Installation Kit

2- Dana 30 JK 5.13 Reverse Rotation Ring & Pinion Set with Ring & Pinion Master Installation Kit

3- Inner Axle Seal

Is this correct ? would appreciate your kind assistance.

Best Regards,
Mahmood
Yes sir, that is correct.

Marcus


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post #3 of 6 Old 02-09-2015, 10:13 PM Thread Starter
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Many thanks for your response good sir.

Kind Regards,
Mahmood
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post #4 of 6 Old 06-01-2015, 06:09 AM Thread Starter
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Hi guys,

Sorry to bring up an old thread. I would just like to update you all regarding my regearing. So our guy in my country finally regeared my JKU to 5.13 but encountered a problem. I am new to this, before ordering the parts he told me to make sure that both front and rear were correct. Turns out now that the front tire's one full rotation is different than the rear tire. So questions are, does this mean that the parts sent to me are wrong ? does my guy not know what hes doing ? What could be the problem ? is there a solution to this ?

Would appreciate your kind assistance !

Regards,
Mahmood
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post #5 of 6 Old 06-01-2015, 11:52 PM
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Unless you are running tires with different heights front and rear, it sounds like you were sent two different ratio's, and one end needs to be regeared again. You need to find out what gears are in both ends so you know which gears to order.

If you don't want to pop the covers and count teeth, you can lift a corner, mark the driveshaft and the tire, spin the tire two rotations (or one rotation if you lift both tires, I think?), and count driveshaft revolutions.

You are fine to drive it in 2wd until you get the correct gears installed, just do NOT use 4wd. You may want to just pull the front driveshaft to be safe.
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post #6 of 6 Old 06-09-2015, 12:05 AM Thread Starter
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Originally Posted by GreenJK View Post
Unless you are running tires with different heights front and rear, it sounds like you were sent two different ratio's, and one end needs to be regeared again. You need to find out what gears are in both ends so you know which gears to order.

If you don't want to pop the covers and count teeth, you can lift a corner, mark the driveshaft and the tire, spin the tire two rotations (or one rotation if you lift both tires, I think?), and count driveshaft revolutions.

You are fine to drive it in 2wd until you get the correct gears installed, just do NOT use 4wd. You may want to just pull the front driveshaft to be safe.
Hi GreenJK,

Many thanks for your response. So latest update is we had to remove the front driveshaft. But now my jk is having trouble changing gears and the check engine light comes on. It needs calibration/tuning for the gears right ?

Thanks in advance.
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