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4WD Shifter Won't Go Into 2H

Old 07-20-2015, 07:28 AM
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Default 4WD Shifter Won't Go Into 2H

We just installed the Boostwerks linkage and now our shifter won't move from part-time to 2WD. We can shift into the other ranges of 4WD, but not up into 2WD. The Part-Time light on the dash turns on, which confirms that we are indeed in part-time.

Any ideas why this might be, and how we can fix it? We were up until midnight and could not figure it out.

91 XJ, lifted 3.5 inches, TC dropped 1 inch, extension tab added per Boostwerks

We're supposed to be on the road on Thursday with this vehicle for my son's 16th birthday. Any help would be much appreciated!
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Old 07-20-2015, 08:03 AM
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Have you tried adjusting the length?
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Old 07-20-2015, 01:06 PM
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X2 on adjusting the length.

Put the TC lever in 2h, make sure the shifter is in corresponding slot and set it then adjust to fit.
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Old 07-20-2015, 02:18 PM
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If there's one thing I wish boostwerks would change it would be the way it's adjusted. The way they make them requires you to unbolt it and unthread one of the ends but if they made one side with left handed threads then you could adjust it like a steering rod.
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Old 07-20-2015, 02:18 PM
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Originally Posted by XJlimitedx99 View Post
If there's one thing I wish boostwerks would change it would be the way it's adjusted. The way they make them requires you to unbolt it and unthread one of the ends but if they made one side with left handed threads then you could adjust it like a steering rod.
I agree
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Old 07-20-2015, 06:21 PM
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Yeah, I can't believe what a bear this has been for such a "simple" job. Of course, being newbies everything is more difficult, but what some people have said is a five-minute job is going on two days for us (probably 6 hours total). It's 100+*F here, so we have to wait until evening to work, so we'll be back out there in a few hours.

Last night my son was under the jeep and I was up top shifting the gear and monkeying with stuff. Tonight we'll switch so that I can be the "fresh eyes" looking at the situation. Hopefully I'll do something just differently enough that it will work perfectly, but he's been doing it exactly according to the printed instructions.

What do you all think about also attempting it with the shifter and tab in reverse directions? (i.e. place them in 4-Lo rather than 2-Hi for attaching and adjusting?)
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Old 07-20-2015, 06:43 PM
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Originally Posted by Coyotlviejo View Post
Yeah, I can't believe what a bear this has been for such a "simple" job. Of course, being newbies everything is more difficult, but what some people have said is a five-minute job is going on two days for us (probably 6 hours total). It's 100+*F here, so we have to wait until evening to work, so we'll be back out there in a few hours. Last night my son was under the jeep and I was up top shifting the gear and monkeying with stuff. Tonight we'll switch so that I can be the "fresh eyes" looking at the situation. Hopefully I'll do something just differently enough that it will work perfectly, but he's been doing it exactly according to the printed instructions. What do you all think about also attempting it with the shifter and tab in reverse directions? (i.e. place them in 4-Lo rather than 2-Hi for attaching and adjusting?)
you can do that either way at both ends. 2h and 4l.
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Old 07-20-2015, 11:36 PM
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Thanks. I couldn't think of any logical reason why to not do it that way, as either way it's the same distance spanned by the linkage. We're still out there getting our fannies whooped, but learning a bit more with each mistake. 9:30PM and it's finally cooling down outside.
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