plugless1

how do i wire my tc loc up to a switch? and what kind of switch do i need?

esde

standard on/ off switch, push or toggle whatever flavor you like
http://www.tstproducts.com/Torque%20...p%20Switch.pdf

infidel

Just make sure if you use a lighted switch or indicator light that the switch has two sets of poles, STDP.
If you don't juice flows though the bulb filament and will mess up the lockup function.

plugless1

great guys, on the way to the switch rack! thanks for the link also

mtdoragary

Can I wire it to an oil pressure switch instead of ground so that if it drops to idle it will drop the lockup?

infidel

You can do this instead. On '95 use PCM pin 54 instead of B11

Lil Dog

Holy smokes! That is some system.

joem

I really want to be able to lock 2nd for windy steep mountain roads as I haul a 18,000 lb Hatachi EX60 up 18% grades to dig watering holes for wild game. My old duramax was able to shift locked but I here we don't want to let the 47 series makes its shifts while keeping the converter locked?

gorms

Not a bad idea, I'm sure they do make adjustable hobbs switches with n/c contacts. Could just run the lockup ground through that first and have the hobbs open up at your set oil pressure. Or use a common normal open switch to hold a relay. Only problem I could see with that is higher pressure in cold weather (on my truck anyhow) could make it inaccurate till it warms up. Other wise try it! I think the port on top of the oil filter housing (1/8" MPT plug) would work.

Also for 2nd gear lockup (manually selected 2nd gear) you need to pull apart the VB and block up a passage in there... google it, it works. I never had any catastrophic damage directly from shifting while locked up, but I wouldn't say it makes anything last any longer either.


edit: Here ya go adjustable hobbs switch, not sure on the range but can get with n/o or n/c contacts here.

mtdoragary

Well-thought-out hookup!