Looking for front spring numbers for 3500 HO QC 4x4 with and w/o the snow plow prep package. Just trying to solve the mystery of whats included in the prep package.<br><br>I have the 3500 QC HO 4x4 auto w/ snow plow prp <br>Drivers 986AA Passenger 985AA

 

This is settled somewhere in very recent history (around mid february).<br><br>Spring rates are the same for the diesel with or w/o snow prep.<br><br>They are different on the Hemi between with and w/o snow plow, dont know about the WEE-10

 

Spring rates are NOT the same between diesels with and without snowplow prep. Snow plow prep springs were posted as 986AA Drivers Side and 985AA passenger side. Non snow plow prep springs (my truck) are 985AA Driver side and 984AA passenger side. These were both on a 2500HD.<br><br>Let the confusion continue! :

 

[quote author=converteddzlr link=board=17;threadid=12530;start=0#118505 date=1048194705]<br>Spring rates are NOT the same between diesels with and without snowplow prep. Snow plow prep springs were posted as 986AA Drivers Side and 985AA passenger side. Non snow plow prep springs (my truck) are 985AA Driver side and 984AA passenger side. These were both on a 2500HD.<br><br>Let the confusion continue! :<br>[/quote]<br><br>IS yours a quad cab? IS there a difference between QC and Std cab springs.<br><br><br><br>IF the Springs are the same, Why cant you get the plow prep package with the 6spd?

 

Yup, quad cab ... guess I outta put that in my block huh? :

 

Convert,<br> For what its worth, I have the same springs (985AA, 984AA) that you have. That surprises me a little because the only difference I see in our trucks is that mine has the 6-sp. I was under the impression that the 6-sp was heavier than the auto and therefore would have heavier springs. ???<br><br>The Boss Hog<br>(still lovin' Smoke ;D)

 

I think it's only around 150 pounds of difference though Boss. Guess that just means that I can carry one more gal on the hood of my truck than you can! ;D

 

Darn, I knew I wanted an auto ;D ;D ;D<br><br>The Boss H . . . OUCH ! . . . . . boy, sometimes Doris has a lousy sense of humor :P

 

So is a 986 spring stiffer then a 985 and that stiffer then a 984? Is the driver side have a heavier spring then the passenger side? Since a 985 is used on prep and non prep trucks?

 

Maybe it has to do with the fuel tank or the direction of the crank shaft rotation.<br><br>jt

 

Hmmm,
I have a '03 2500 HOCummins with Snow Plow Group and the springs in the front are 986aa passanger and 987aa driver!?!? ??? Any thoughts?

 

[quote author=c5r link=board=17;threadid=12530;start=0#msg118540 date=1048200349]
[IF the Springs are the same, Why cant you get the plow prep package with the 6spd?
[/quote]
'cause you're more likely to burn up the clutch of you slip it, or break something with gears in it, snap a u joint, or something if you don't slip it. slush boxes are very good for plowing because they provide cusion for the gears if you hit something. without that, tremendous instantaneous forces can be transmitted through the drive train. just my opinion, but I'm betting DC doesn't want to take on the warranty liability of a 6-shooter that plows anything. The drive train is just not up to it.