06chevy5.3

iTrader: (5)

I want to convert my truck from a 4l60 to a th350 I have a drive by wire throttle body on my truck so no throttle cable wich means I cant use a TV cable I want to go with a built th350 but I thought they have a TV cable and the TH400s have a vacuum modulator, Ive seen ajustable vacuum modulators from B&M and TCI for a TH350 does this take the place of the TV cable???

FLT

iTrader: (1)

No the TH350 has a modulator that is used to control line pressure and a governor that controls when the trans will shift. The cable on a 350 is used for kick down and it will also increase line pressure when doing so. Vince

06chevy5.3

iTrader: (5)

OK, well I researched a little more and found out the TH350C has a electric kickdown soleniod instead of a cable, can I just buy this assembley and install it in place of the kickdown cable on a TH350.

If I dont have the cable or the solenoid I will burn up the trans right?

9000th01ss

iTrader: (10)

The th350C has a lock up torque converter and solenoid for it, its the same as a th350 otherwise.
They both have kickdown cables, no th350 has a kickdown solenoid.

A th400 has a kickdown solenoid. Some kickdown solenoid switches were operated by the gas pedal. I guess there could be a way to fabricate mounts to connect the th350 cable to the gas pedal.

Stroked96Bowtie

iTrader: (22)

Ive got a TH350 in my car...opted not to use the kickdown at all. Pulled the pan off and yanked out the lever on the thottle body for it. If I need a passing gear I just manually drop into second. Ive got 4.10 gears though so Im usually okay leaving it in 3rd (or drive).

9000th01ss

iTrader: (10)

You can do that too but you don't get the pressure rise and firm shifts at wot.

06chevy5.3

iTrader: (5)

I thought about gion this route, but haveing the cable running through the truck might look like and I dont know if the pedal has enough travel for the cable. So removeing the cable will decrease trans performance even with manual shifts?