I have the new gears ready to have installed, with new differential covers, but unsure on who should do them? I would have to drive 4 hours to have them installed by a shop that does JKs on a regular basis. However, there is a local shop that does gear changes on various vehicles, never on a JK. What problems mgiht occur if I have the local shop complete?

 

"JK on a regular basis" - Have they done a lot of re gearing as well? If so I say you should take the extra 4 hours trip, at least you have that piece of mind that it was done with an experience & competent shop...


-If that shop doesnt have enough experience, they may run into problems during the install and may take longer then usual...If things are not set to specs/correctly the new gears may not last and you may end up redoing the gears later on and have that added expense....

 

x2..also i would either tow truck home on a trailer to get break in done, and not rush and put 4hrs on brand new gears, or see if the shop doing the install will break in and change oil prior to pickup.......i am sure they would nt mind

 

How long does it take to break them in?

 

Break in should be at 500 miles...This was taken from the FAQ section...

Q: I just had my axles regeared, is there a break in period that I should be aware about?

A: Yes. After regearing your Jeep, you should try to drive your Jeep easy for the next 500 miles and not for extended periods of time. After 500 miles, be sure to change your differential fluid with a good synthetic 75W90 gear oil. I personally like to use Royal Purple but have used Mobil 1 and Valvoline with good results too.

https://www.jk-forum.com/forums/show...76&postcount=4

 

Great input. Thanks for the suggestions.

 

below is a basic break in, but suggested to check with manufacture of the gears for there break in.....

BREAK IN

A new ring and pinion installation, especially a high numeric ratio with new bearings, can cause an excessive heat buildup in the rear end and cause softening of the gear teeth and bearings if a break in is not performed.

Street vehicles should be driven at normal street driving speed for approximately 10 miles, then stop and let cool for 30 minutes. Do this 2 to 3 times. Towing vehicles need approximately 200-300 miles of normal street driving before being used for towing.

NOTE: If after the above break in is performed, overheating of the rear end is suspected, repeat the final portion of the break in procedures.