brillmtb

Ordered new 03 Crew Cab HO. Diesel is a new concept for me. I ordered the Auto after a very long debate. I think I did the right thing.<br><br>What I would like to know is why there is concern with using an exhaust brake on the automatic. I think some fire trucks run cummins motors, autos and these brakes.<br><br>Would I damage anything.<br><br>Secondly, what is the best brake to use?

phox_mulder

The concern is that on a stock automatic transmission, the torque converter doesn't lock up till you hit 3rd gear.<br>And, on my 2002 anyway, as soon as you let off the go pedal, the TQ unlocks and the truck drops to idle, even at highway speed.<br><br>No lockup, no resistance, no braking force.<br><br>You can add a manual lockup switch, but again, on a stock auto the lockup clutches can't hold, resulting in slipping, heat, more slipping and eventual tranny failure.<br><br>Now, you can get the transmission turned up by one of the aftermarket tranny guru's (no wars) and get a torque converter that can lock up in 2nd gear, and a better valve body to hold it in lockup so the E-brake can do its job.<br><br>If I've missed any of the high points, someone else feel free to chime in .<br><br><br>phox

Nevada

[quote author=phox_mulder link=board=8;threadid=14966;start=0#140406 date=1053479268]Now, you can get the transmission turned up by one of the aftermarket tranny guru's (no wars)[/quote]<br><br>Come on Phox, we haven't had a good tranny war for about two weeks. ;D

BigBlue

If I'm remember correctly. I read that the new 03 HO (and I think the SO) autos can handle an exhaust brake from the factory. Now. With that said. It's time for a tranny war. ;D <br><br>[move][glow=blue, 20, 600]ATS[/glow][/move]

dersequim

KA-BOOM <br> First SHOT PACbrake :

DieselDaze

[quote author=BigBlue link=board=8;threadid=14966;start=0#140468 date=1053488383]<br>... Now. With that said. It's time for a tranny war. ;D <br><br>[/quote]<br><br><br>I dont think so! <br><br>Rich

brillmtb

I also heard that the new 48 is set up to accept an Ebrake, whatever that means, and that Dodge is testing some version but that it has not &quot;blessed&quot; and Ebrake yet