Wehring - Continental AC70 chevron tires and locker

[wehring]

Yes rear locker only until you sort out a selectable locker for the front! Thanks for your help. You are welcome here anytime! Always have dead cow to eat and lies to tell around the dinner table. Come on!

 

[Suprman]

C7 trucks have data bus. You can access the Ctis controller via the trucks main diag port with a laptop, Dana software and a port interface.

 

[dronsen]

Justin-

Good to hear from you - and nice job! What size AC70's did you use? Any reason they wouldn't fit onto 20x10 steel wheel?

 

[wehring]

425/75R20

factory FMTV wheels are non-MPT bead wheels. These tires have an MPT bead. A friend runs a set on non-MPT MRAP wheels and says they work fine but I have not tried it to have an opinion.

Justin

 

[dronsen]

Huh-

I never heard of MPT wheels or tires before now...just did a bunch of Google-machining and understand better now, though still haven't seen a good photo comparison for a complete understanding. What were the 20x11 MPT wheels off of that fit an LMTV?

Thanks!

 

[wehring]

Mpt

Overlay of both... white is MPT bead and blue is non-mpt (FMTV)

 

[dronsen]

Thanks - What were the 20x11 MPT wheels that fit an LMTV?

 

[wehring]

No idea. Only have seen these

 

[ramdough]

Has fast gear conversion.

i can reprogram the CTIS. Can change over speed values and psi values. Can also trouble shoot and check codes. $125 hr

Is that only for C7 trucks? Can you read engine codes for earlier trucks as well?


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[wehring]

Only C7 trucks

 

[ramdough]

Only C7 trucks

Out of curiosity........

Can an older CTIS be plugged into your C7 truck and get reprogrammed?


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[Suprman]

I can read codes on 3126 A1 but it dosnt have the data bus like the C7 A1 trucks. First gen trucks are mechanical engine. There is an Allison diagnostic plug on all of the trucks but it takes specific Allison compatible diagnostic hardware to read. I spoke with a Dana engineer at one time he said he thought the 3126 A1 trucks had the ctis controller connected to the main engine data port and he thought ctis programming could be done on these trucks but I have not had a chance to try. I have everything to do it if it does work.

 

[ramdough]

How do you think stock tires with Lockers would have done?


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[wehring]

The XZLs and Goodyears dont work well at all. They clog up and dont self clean. XMLs do better.

 

[steve6x6x6]

Not FMTV but 14.00 XZL with V100 axles front and rear with lockers, i will come and pull you out Justin when you get stuck in that M1078.

 

[DiverDarrell]

Justin, have you ever run into these rims. I can't figure out what they can off of. Lug centered still trying to figure out if I can make the ctis work

 

[wehring]

I have not seen that style before

 

[quickfarms]

J


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[Chism]

C7 trucks have data bus. You can access the Ctis controller via the trucks main diag port with a laptop, Dana software and a port interface.

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[Keith Knight]

I seen a set at a local tire store, they were asking $100 each. All the measurements are correct and I like how the CTIS is mounted. To make it work from what I can tell would require a cross hole drilled in the large wheel stud that supplies air to the CTIS an o ring behind the wheel on that stud a threaded plug on the end of that stud and maybe some thread sealant on the lug nut.
Have you figured it out?