Is this yet another Dodge trait!

[Curious Dave]

10 should not be a problem at all. I got 7 once. But that was due to strong head winds in the Dakotas, going 70.

 

[AClayton]

Alan,



Ooops. Sorry, I forgot your truck is an automatic. That makes the jerking harder to understand. Is the torque converter stalling then slipping under the extreme load? My '06 48RE didn't do that when stock or after the full DTT conversion.

Harvey...



I don't know!! It doesn't feel like slippage at all..... if anything,it's the exact opposite!! It's like it wants to deliver torque but the truck won't let me. It has to be gearing because when I shift into 4 low,it goes away and I manuever accordingly. I am going to have my mechanic look at the rear and mounting hardware..... I looked briefly this evening and didn't find anything unusual. There have been times when I wished for a lower gear-set while going up hills under 20mph. Maybe the 2 low will solve my problem all the way around. Thx for the help Harvey and everybody!!



Alan

 

[cojhl2]

Alan, please keep this thread posted on what you learn and/or find. This is an interesting issue. I for one just don't understand how an automatic can do this unless there is something in the TQ or Transmission.



Was there any sign of tire slip?

 

[AClayton]

Alan, please keep this thread posted on what you learn and/or find. This is an interesting issue. I for one just don't understand how an automatic can do this unless there is something in the TQ or Transmission.



Was there any sign of tire slip?

Will do Partner... .



Alan

 

[NIsaacs]

Yes, it is a Dodge/Cummins thing. My 91 does it even empty. My 01 does not. The 91 has a two piece drive shaft, the 01 is one piece. I think it is caused by several reasons.



I think the biggest reason is the motor mounts. They are too mushy, mounted too narrow and too close to the center line of the crankshaft.



This can be compounded by the center support bearing rubber support. It is also too small and mushy.



Then when in reverse, the torque applied to the rear/longer portion of the rear springs and moving shackles adds it's weakness to the problem.



Nick