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Make sure that your wheels sit flat against the hub flange and that the center hole fits the protrusion on the hub. Clean all rust and corrosion from both the hub and the wheel mating surface. When tightening, use a star pattern, tightening one lug part way, semi-tight, then doing the one opposite it and so on, 'till you are back at the first one. Once all are semi tight, torque each to about 75 to 80 foot pounds in the same pattern. Normally you should not need to do this third step, but drive around normally for about an hour, then re check the lug tightness again with the torque wrench. Never use a wheel that either does not fit exactly or one that has been damaged at the lug holes by running loose. Make sure all wheel studs are in good condition. Any damaged by a loose wheel must be replaced. One rule for aftermarket wheels. You need to have at least the same amount of threads inside the lug nut as the diameter of the lug. (a 1/2" stud needs to have at least 1/2" of threaded area inside the nut...more is better)
Its an easy job! Disconnect the battery first! That's very importand! Then disconnect the wiring pack from the ECU. Some models are equipt with snap-systems, other with a screw-system to remove the wiring connector from the ECU. If done, there are three or four screws that hold the ECU in place with the body. Remove the screws and you hold the ECU in your hands. To buy a new or rebuilt ECU, reffer to the numbers shown on the label at your Wranglers ECU in combination with the V.I.N. To connect the new ECU with the wiring pack, be careful with the connector! You need to put him in the right position to connect with the ECU. Do it slow and make sure the connector fits to all points. Otherwise you'll bake some contacts inside the connector.
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