TECHNICAL FAQ

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TECHNICAL FAQ

Do I need torque management? Yes! Torque management is absolutely necessary for proper transmission operation.

Do I need a NEW torque converter with my NEW SHR transmission? Yes and NO. We always recommend a NEW torque converter with your NEW transmission. We have them for sale right HERE. At the VERY least, you will need to have your converter cut and cleaned by a professional torque converter builder. We can handle that for you if the need should arise. **NOTE** FAILURE TO EITHER REPLACE, OR CLEAN YOUR TORQUE CONVERTER CAN RESULT IN SERIOUS DAMAGE TO YOUR TRANSMISSION!!!

Do I need a custom transmission calibration? In most cases, yes. This will be dictated by your vehicle build and power level. 

Does my engine calibration affect my transmission operation? Yes! Poor engine calibrations can DESTROY your transmission rather quickly!

Does SOUTHERN HOTROD LLC tune transmissions? No. We do not. We focus on hardware. There are many qualified tuners available.

I have an 8HP 8 speed transmission equipped 2wd vehicle (Challenger, Charger, 300), should I install a single piece driveshaft? NO. We DO NOT recommend single piece driveshafts of ANY kind in 8HP 8 speed equipped vehicles. Vibrations and/or dynamic loads can cause CATASTROPHIC damage to your transmission. This could lead to Vehicle damage and/or personal injury. If you currently have one we recommend that you remove it. 

What transmission fluid do you recommend? SOUTHERN HOTROD LLC ONLY recommends MOPAR ATF+4 for NAG1 722.6, and MOPAR 8&9 Speed ATF for 8HP.

How much fluid does my NAG1 722.6 transmission take? 7.7 Liters (8.13 Quarts) Check and adjust as necessary.

How do I check the fluid level in my NAG1 722.6 transmission? You will need a NAG1 722.6 dip stick.

How much fluid does my 8HP transmission take? 8HP70/90/95- 9 Liters (9.5 quarts). Check and adjust as necessary.

How do I fill my 8HP transmission? CLICK HERE

How do I check the fluid level in my 8HP transmission? CLICK HERE

How can I get help? CLICK HERE