hey all, i have a 01 5.9 off road. When i put the truck in reverse it has a slight shudder until i give it gas. it also shudders on deceleration as im slowing down. Any suggestions? Also what color is ATF+4? the truck has red trans fluid in it now wich is probably dextron. Im assuming that can cause alotta damamge?

 

As far as your shudder in reverse. A simple band adjustment might be the fix. I would also check your fluid level and that can cause a shudder when it's low on engagement. ATF+4 is a syn. fluid and it's is also red but, if my eyes are correct, a purple tint to it. I would not recommend Dex/Merc. fluid in a electronic mopar trans. Your shudder on decel? Could you go more in depth? Speed and Rpms, all the time?? Good Luck, Nick.

 

the shudder on decel almost feels like its front rotors....but its so close/nearly identical to the one in reverse i was thinking it could be the same thing since there at nearly the same slow speed. it does it as im comming to a stop with no gas. and in reverse it does it when i take my foot off the brake and dont hit the gas as well.

 

Shudder in reverse on light throttle is normal and has been for 40 plus years. your decel problem could be warped rotors.

 

The way I tell if the rotors/drums are warped is to apply the brakes hard from 50mph and see if the the steering wheel shakes or if the brake pedal moves up and down. If it does any of that, it's safe to assume that yours brakes are getting bad and causing a shudder. As far as a shudder in reverse, I would have to agree with master that you will feel a slight shudder in reverse. My fix is usually a VB kit (new valve to fix no charge in park) and new band with correct adjustment. If I remember correctly chrysler has a TSB out on reverse band adjustment. Good Luck, Nick.