Asher

OK guys I tried to search and came up with nothing...

Has anyone put a lock up (mystery) switch on a 48re??? I find myself driving alot on the service roads and 45mph limit is just under the factory 48mph lock up setting. I don't want to do this to race with, just to lock up when I am chugging along just under the goofy 48mph setting.

I know it is possible to do, I just don't know how. Heck I find my self running through the 25mph neighborhood streets in 2nd & tow haul, just so the TQ locks up and I don't have to listen to my engine slip aimlessly.

Does anyone have a write up in it???

Thanks in advance...

RamWheelsBy4

I have one. Michael at HotRodDiesels.com did one for me when he did the TC/Trans build. I have just a dead mans switch, I use it for racing only and don't want to worry about turning off changing settings. I could easily change to a toggle switch. You might call one or two of the performance transmission manufacturers and ask them. I know the ATS Commander has all kinds of lockup settings, gear and speed. Call them, ATS, DTT, Dunrite, SunCoast, etc. and ask.

Asher

Thanks for the reply, I am looking to do something like a toggle switch. I really don't see the need to spend the big $$$ on a "module" that has a bunch of bells and whistles, I just want a toggle switch that will allow me to manually lock it up. The cheap "home made" way is better for me ...

irish4u

I have a 05 and I guess the 04`s are different, because I turn on the tow/haul mode and it holds 4th locked down to 40mph and below that locks 3rd down to 25 mph. I am thinking about a ATS module when I beef up the trany.

John Rodriguez

I tried the old way on 03-04's (not 04.5-05-up) of tapping pin #7 and shorting tranny-side to ground. Sets a code, and goes into limp-mode.

slimpicken

someone explain this old way of doing this shorting pin 7 thing to me please, looks promising.

Mcmopar

See my gallery, there are directions and diagrams, I think the info is only good up to 2002? But you can give it a try. Your service manual will help you locate the tranny TC lockup wire, I would be it is different on the 3rd gen. trucks.

Good luck

rockjeep

Would also be nice to lug the trans lower than 40mps to smoke out those peskie tail gators.

Asher

So it looks like no one has been able to do this on the 3G's yet?? WOW, I figured that there where a few that already figured it out...

there has got to be a way, I guess I will have to put it on the list of "research and jump in with both feet"....

OT-OF-Here

The ATS Commander will give you exactly what your looking for. Works flawlessly and will enhance any auto.