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Not that I can think of, have you received the documentation from Zero Gravity, if not ask them for it.

To answer this, there was no issue in low range, I was monitoring it on the laptop and it went into lockup in second gear and stayed there as long as I was feeding it fuel but I have noticed that in gears between 2nd and 4th the TC will go out of lock most of the time when the accelerator is at...

They revised the forecast for the beach, Sat 40-49, Sun 42-50,,

Dang, spring break starts this weekend, no bikini's on the beach!!!!

Yes, I will miss this Saturday when it is 105 at 90% humidity with a stifling 0 MPH wind and no rain it sight!!!

Gee, can't believe I waited all year for this weekend and the annual FWD beach cleanup, it is going to be nasty, Low 47, high 57 wind NNE 18MPH and 65% of rain..........

I have about 1500 miles on the transmission now, still loving it!! The annual beach cleanup is the 26th, that will mean 80-90 miles on 4WD beach pulling the M1102 and half of that distance will be with a loaded trailer, should give the rig a good workout, then because I have not wanted to make...

If you do not have a TPS, it's just as easy to use the GM version that is referenced in the other posts, if you have a 4sp IP then by all means use it.

Yes it should work, all common TPS sending units are just variable resistors, you connect the 5V buss to one side, ground to the other and the "wiper" is the TPS signal to the TCM

OK that is what came on the 6L90 (1626XHD) I used as a core for the 6L80 and the MP1626XHD is also what I used in my Duramax conversion, without the data from the ECM there was no way to make the TCCM work on the Detroit, but you could have and I am pretty happy with the MP1626XHD in the...

Also do you have a link to the Phoenix site, seems there are a ton of folks using Phoenix in their name.

I am curious what transfer case you used and how you adapted it to the transmission.

Ah, ok you installed it as a set, so you already had a "controller" to talk to the 6L80 TCM with the ECM, yes it would be a pain to change the TCM I was thinking I was the first to put a 6L behind a DETROIT diesel in a HMMWV

So you also have a 6L transmission in your HMMWV? This system has adaptive programming, I am having no problems at all with shifting now, the only reason I want to program the TCM now is so I can dump a Corvette tune in and activate manual shifting. I have a hunch I may be able to dump a...

Turned over 1000 mi. on the conversion today and loving every one!

I do not plan to do any changes until after the N. Padre island cleanup in Feb. I do plan on doing much more road time until then, they usually put us on the longest run, usually about 40-50 mi of 4WD beach (and back) so that will give me plenty of off road data to work with but I do not have...

I have about 300 mi on the transmission and I am extremely happy with it, I still have not resolved the problem being able to read the tune from the TCM. If I am pushing it as say to enter a highway I still have to lift the throttle to get it to up shift at times, I have not pursued the...

NO, manual shifting is just a mode, you can select that mode electronically then you can use a up-down switch to control the transmission, nothing to do with the manual shifter except you have to be in drive to activate it. There are not enough drive positions to have complete control manually...

I would assume so for the most part, but the Park is mechanical the rest of the driver involvment is a multi position switch, BUT you have to have an interface to the TCM like the TCM-2650. dragging all the signals out without the TCM would be a big problem, IF you pull all control off of the...

Wow, I just read the 6L80 was built at the Willow Run facility, the same plant that built B24 Liberators during WWII, pretty cool!