So my tranny is going...going...and all but gone. So I've been playing around with it before it gets a new one.

With o/d off, I can lock up at like 26 mph. Is this normal? it's kinda nice for driving around town. With o/d on it locks at like 40 or 50 (if ever).

Anyone else's truck doing this?

TIA,
Matt
p.s. I haven't put a lock up switch in or done anything else goofey.

 

That is totally normal , mine locks at 30 mph ( depending on pedal position) with O/D off , and at about 55 with O/D on (again depending on pedal position)

 

mine with the 4.10 gears locks at 25-30 in 3rd and like 40 in od how much is your converter stalling when it goes into lockup

 

Not sure how to tell this or what this is?

 

he means how many rpms does it drop (stall) when it goes into lock up

mine locks up exactly as yours does.... completely normal

 

sounds like my trans.
and im having a positive lockup issue.
otherwise shifts fine.