What is the normal break-in period for a Lentech Transmission?

After the initial 150-250 miles, a fluid & filter change is required.  Service intervals thereafter yearly or 20,000 miles.

What type of fluid should I use on my Transmission?

AOD Street Terminator/Cruiser transmissions models should use Dexron III /Mercon, or Mercon V.  Compatible synthetic variants can be used.

All models of AODE 4R70W models with lockup type torque converters should use Mercon V.

Strip Terminator models (AOD or non-lockup 4R70’s) should run SWEPCO 714-20 see website at www.swepcousa.com

**Or, John Deere Hy-Gard hydraulic fluid

** running John Deere Hy-Gard requires specific filters, please call us for further details.

How do I wire overdrive or lockup in my full manual 98+ 4R70W?

Using a length of original vehicle harness, connect pin #4 to switched 12V source.

Connect pins #7 & #8 to the accessory prong of a toggle or rocker type switch inside the vehicle. (See diagram in tech install manual)

Connect the other prong of the switch to a good source of chassis ground.

Using a separate switch, connect pin #3 to accessory prong, connect other prong of same switch to a good source of chassis ground.

Can I install a full manual valvebody in my AOD with a lockup type torque converter?

No.  The vehicle will stall when in O/D or 3rd with the wheels stopped.

Does applying a +12V to the red wire on my AOD cancel, or engage overdrive?

A-    For automatic shifting models (TV cable required) the +12V CANCELS O/D operation.

For manual shift models, (no TV cable) +12V engages O/D

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