I just had some gears put in my car and the rpm's are 2500 at 60mph. does that sound about right with a 700r4? and i cant tell if the torque converter is locking up. can anyone help with the topic? thanks sean

 

i ahve 3.42's and @ 60mph i'm runing at aboit 1650rpm. at 70 i'm runing at 2000rpm.

 

I am running 3.42's with a 700r4 and I changed the speedometer gears to correct my mph. At 60 mph it's at around 2000 rpm give or take the converter being locked and at 80 it's at 2500rpm.

 

1750 @ 60 mph with 3:42 rear.
To check your converter lock up: Drive the car at 50 mph steady speed, while keeping your right foot on the gas to maintain speed, tap the brake pedal with your left foot, the tach should indicate a rise in RPM (200-300) then go back down when you let off the brake.

 

for got to say i have 3:73 gears. if it isnt locking up what could be causing it not to lock up?

 

TCC solenoid bad/not hooked up, ECM not getting the right VSS signal, ECM bad, broken wire/s

 

i did have a prom burnt a little ways back. i am getting 17-18 miles per gallon. but i did drive it today and i didnt see it drop whit the crusie on. but it shifts into 4th at 30. well mybe i will just lwt it go for know seems to drive well i just thought the rpms were alittle high with the over drive tranny. thanks sean