Open Discussion - Front solid axle conversion

[jjt250]

Now that I'm locked front and rear this jeep won't be getting a solid axle or superlift. Dont need em

I would love to see that front locker in action and see how it works. That sounds so cool. Maybe QDII guys will be able to do that some day. I'd love to be able to manually lock my diffs.

Has anyone thought about a long travel suspension? Like with longer A arms, etc, similar to a Ford Raptor? Those are like 3.5 inches wider on each side but even 2 inches could yield some pretty good gains and wouldn't it solve a lot of computer related problems vs a SAS? I mean you still wouldn't get the articulation gains of a SAS but it would probably be easier, more cost effective, and still very comfortable to drive especially if you combined it with some Icon or King coilovers. Of course your tires would stick out further so you'd need fender flares most likely but I can see that being much easier to accomplish on XKs. I don't know, I just always thought long travel suspension would be really awesome to see done on our platforms.

[valpacer]

The more I think about it, if I get a Hemi XK in the future I don't think I'm going to get it with QD II. It makes a solid axle conversion more difficult due to the computer programming and quite possibly not as capable as the front and rear setup I'm currently running in my Jeep.

The opposite. QDII vehicles disable the traction control completely in Low range, all you have to do is fool the computer that the solenoid is still there (resistor). With a QTii vehicle it will still try to brake the wheels if it determines a slip (that can be side to side or front to rear) where the QDII vehicle wont. Ie if the rear spins and the front doesnt, it will actually brake the rear wheels and vice versa. I know the Tcase should be fully locked anywy, but with enough load they will slip.

[jjt250]

The opposite. QDII vehicles disable the traction control completely in Low range, all you have to do is fool the computer that the solenoid is still there (resistor). With a QTii vehicle it will still try to brake the wheels if it determines a slip (that can be side to side or front to rear) where the QDII vehicle wont. Ie if the rear spins and the front doesnt, it will actually brake the rear wheels and vice versa. I know the Tcase should be fully locked anywy, but with enough load they will slip.

Hmmm never even thought about that. Makes sense but if you're locked, it won't matter right since the computer things your wheels are just spinning at the same speeds?

[07JeepXK]

Hmmm never even thought about that. Makes sense but if you're locked, it won't matter right since the computer things your wheels are just spinning at the same speeds?

That's what I was thinking. Right now I'm locked front and rear so the tires on both side of each axle spin the same speed. Who knows. I love my current setup. Just got to really wheel it now and see how everything works out and what I break next lol

[06JeepXKHEMI]

This is what I was thinking the other day, in the situations where you dont need to flip the switch for QDII clutches, wont the computer still want to brake whatever wheel is slipping? Could this damage the QDII diff?

[Matt]

Dave are you sure QDII disables traction control differently that QTII?

If you're in 4 low with QDII and have your front diff open, Itll probably set a DTC for front diff clutch performance. ... but thats not really a big deal.

Which gives me another thought for the QTII guys. Adam do you have a place with loose dirt or gravel that you can drive circles on with your front locker engaged? ? Wondering how your traction control system will react when it doesnt see different wheel speeds while turning (ref steering rack issue)

[Matt]

Andrew, that won't damage the QDII diff

[07JeepXK]

This is what I was thinking the other day, in the situations where you dont need to flip the switch for QDII clutches, wont the computer still want to brake whatever wheel is slipping? Could this damage the QDII diff?

Nope cause I have a switch wired up to completely disable the traction control through the abs pump fuse. So the traction control won't kick I at all. Just full power to both rear wheels and one front. Flip the locker switch and then get full power to all four wheels

[07JeepXK]

Dave are you sure QDII disables traction control differently that QTII?

If you're in 4 low with QDII and have your front diff open, Itll probably set a DTC for front diff clutch performance. ... but thats not really a big deal.

Which gives me another thought for the QTII guys. Adam do you have a place with loose dirt or gravel that you can drive circles on with your front locker engaged? ? Wondering how your traction control system will react when it doesnt see different wheel speeds while turning (ref steering rack issue)

I can probably find somewhere to test that out

[07JeepXK]

Just tested it out. 4high with front end locked making figure 8's on gravel parking lot. The traction control was fine and never kicked in. I can definitely tell when the front end is locked. You can feel it in the steering wheel