Heavy loads w/ 2500 diesel 6.7

cyberdiesel · 07-04-2009, 01:19 AM

I've upgraded to a larger toyhauler, (much larger) and have a question for the gear heads rather than the retired w/ a trailer crowd. I've always been amazed that it's just fine with folks if you build a 900 h.p diesel 2500, but if you speak of tricking out a 2500 to handle some heavy duty **** like towing a heavy load all these guys start quoting dodge safety specs. Basically I 'm wondering what the drivetrain differences are between a non-dually 2500 and a non-dually 3500 cummins 08 model. Are the 6-speed transmissions the same? What about final drive ratios? Please avoid the doom and gloom, as I have an excellent braking system on this new fifth wheel and just would like some advice about what I
can do to help this truck survive a 14000 lb fifth wheel.

Thanks and yes, I know this isnt the trailer section, but I'm looking for tech advice related to this model truck.

08 6.7 egr free toy-hauler-hauler.

seanth468 · 07-04-2009, 01:43 AM

A 500lb overload leaf spring in the rear is the difference.

__________________
07.5 6.7 Auto SRW SWB QC 4x4 White Lonestar Edition leveled B&W,S&B,DashHawk,4" TBE, and Smarty S-67 14ME Thanks to RSD

cyberdiesel · 07-04-2009, 02:00 AM

I was hoping to hear that, I've already dealt w/ the rear suspension, and the truck just friggin' cruises with this trailer behind it. Once the smog issues were covered, this 6.7 has turned out to be the absolute BEST work truck and most rock solid tow vehicle I've ever owned.
Thanks Cyberdiesel 6.7 toyhauler-hauler 2500

Rockwerx · 07-04-2009, 02:39 AM

If you do not want to install an extra leaf a lot of guys install some air bags to help give their truck some more load control.

__________________
2008 3500 Laramie QC 4x4 LB DRW 6.7 CTD Auto LSD 3.73 EJA EPP 5" TBE AFE CAI -EGR 3.5" BOOST TUBE AirDog 150 RWX
Most wanted mods: Wild Card Customs Intake Horn,Twins

cyberdiesel · 07-04-2009, 02:58 AM

Quote:

Originally Posted by Rockwerx

If you do not want to install an extra leaf a lot of guys install some air bags to help give their truck some more load control.

The airbags are o.k.--, actually a big help. I'm thinking of a 3500 "conversion" for a permanent solution. Either an add-a-leaf or a 3500 suspension via the local salvage yard.

Has anyone simply upgraded their 2500 leafs to 3500 leafs?
Do they fit?

Thanks, cyberdiesel 6.7 toyhauler-hauler

Toney198 · 07-04-2009, 07:10 AM

Quote:

Originally Posted by cyberdiesel

The airbags are o.k.--, actually a big help. I'm thinking of a 3500 "conversion" for a permanent solution. Either an add-a-leaf or a 3500 suspension via the local salvage yard.

Has anyone simply upgraded their 2500 leafs to 3500 leafs?
Do they fit?

Thanks, cyberdiesel 6.7 toyhauler-hauler

I too would like to hear from someone that has done this. Does it just bolt right up?

__________________
2007.5 Dodge 2500 LWB, 4x4, Lt Kaki, Lonestar edition, fender flares, leveling kit, edge W/Attitude

, Stage 1 delete W/EGR unpluged, 18in XD SPY W/Pro Comp Extreame AT, 6spd auto, 373 gears.

Hot Stuff · 07-04-2009, 08:59 AM

The leafs are the same between the 2. The only difference is the OVERLOAD springs. The little "helper springs" on top of the regular leaf pack.

__________________
'03 Black 2500 QC/LB 4x4, 6 speed, BHAF, 2" lift, black H2's, 35" BFG MT's, B&W turnover, Juice w/ Attitude, 5" str8 pipe, BD lift pump, spin on filters, Firestone bags

Ohio Coal Roller

seanth468 · 07-04-2009, 12:56 PM

Im pretty sure you need the bump stop that bolts to the side of the frame. Its what the over load spring hits. Look at any 3500 frame to see it

__________________
07.5 6.7 Auto SRW SWB QC 4x4 White Lonestar Edition leveled B&W,S&B,DashHawk,4" TBE, and Smarty S-67 14ME Thanks to RSD

Hot Stuff · 07-04-2009, 03:32 PM

Yeah, that's part of the overload spring setup.

__________________
'03 Black 2500 QC/LB 4x4, 6 speed, BHAF, 2" lift, black H2's, 35" BFG MT's, B&W turnover, Juice w/ Attitude, 5" str8 pipe, BD lift pump, spin on filters, Firestone bags

Ohio Coal Roller

tad490 · 07-06-2009, 06:04 PM

not to turn this in too a air bag vs leaf spring talk, but the air bags are nice because you can ajust them as you need to, I haul a 302 fusion toyhauler and they work very well! firestones install nice and easy dodge 2500

__________________
stock 2500 slt,auto six speed,4x4,quad short box tows a 35 foot fifthwheel toyhauler

DodgeLuvr · 07-06-2009, 06:25 PM

just the heavier springs as stated above!

__________________
2008 Laramie "Speed costs money, How fast can you Afford to go?" Performance Shops I Prefer, www.rollinsmokediesel.com / www.k2dieselperformance.com / www.genosgarage.com

nostroker · 07-06-2009, 06:27 PM

I have to agree with the airbags! Although mine is a 3500C/C with dual wheels, I have them and love'em! The overload will work, but cost you a little ride comfort unloaded.

__________________
2007 Dodge Ram Quad Cab 3500 C/C, 6.7 Cummins, auto, 9'-4" CM Hauler bed, Frontier replacement bumper, XRT w/delete Kit, S&B INTAKE KIT! thanks to K2, H&S this truck is fun to drive now!

07-04-2009, 01:19 AM	#1 (permalink)
cyberdiesel Cummins Fan Join Date: Mar 2009 Location: so cal Posts: 48 Thanks: 0 Thanked 0 Times in 0 Posts cyberdiesel's Truck Pics	Heavy loads w/ 2500 diesel 6.7 I've upgraded to a larger toyhauler, (much larger) and have a question for the gear heads rather than the retired w/ a trailer crowd. I've always been amazed that it's just fine with folks if you build a 900 h.p diesel 2500, but if you speak of tricking out a 2500 to handle some heavy duty **** like towing a heavy load all these guys start quoting dodge safety specs. Basically I 'm wondering what the drivetrain differences are between a non-dually 2500 and a non-dually 3500 cummins 08 model. Are the 6-speed transmissions the same? What about final drive ratios? Please avoid the doom and gloom, as I have an excellent braking system on this new fifth wheel and just would like some advice about what I can do to help this truck survive a 14000 lb fifth wheel. Thanks and yes, I know this isnt the trailer section, but I'm looking for tech advice related to this model truck. 08 6.7 egr free toy-hauler-hauler.

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07-04-2009, 01:43 AM	#2 (permalink)
seanth468 Diesel Head Join Date: Mar 2008 Location: Vidor, Texas Posts: 1,000 Thanks: 22 Thanked 43 Times in 37 Posts seanth468's Truck Pics	A 500lb overload leaf spring in the rear is the difference. __________________ 07.5 6.7 Auto SRW SWB QC 4x4 White Lonestar Edition leveled B&W,S&B,DashHawk,4" TBE, and Smarty S-67 14ME Thanks to RSD

07-04-2009, 02:00 AM	#3 (permalink)
cyberdiesel Cummins Fan Join Date: Mar 2009 Location: so cal Posts: 48 Thanks: 0 Thanked 0 Times in 0 Posts cyberdiesel's Truck Pics	I was hoping to hear that, I've already dealt w/ the rear suspension, and the truck just friggin' cruises with this trailer behind it. Once the smog issues were covered, this 6.7 has turned out to be the absolute BEST work truck and most rock solid tow vehicle I've ever owned. Thanks Cyberdiesel 6.7 toyhauler-hauler 2500

07-04-2009, 02:39 AM	#4 (permalink)
Rockwerx Diesel Head Join Date: Sep 2007 Location: Alberta Posts: 1,653 Thanks: 5 Thanked 6 Times in 6 Posts Rockwerx's Truck Pics	If you do not want to install an extra leaf a lot of guys install some air bags to help give their truck some more load control. __________________ 2008 3500 Laramie QC 4x4 LB DRW 6.7 CTD Auto LSD 3.73 EJA EPP 5" TBE AFE CAI -EGR 3.5" BOOST TUBE AirDog 150 RWX Most wanted mods: Wild Card Customs Intake Horn,Twins

07-04-2009, 08:59 AM	#7 (permalink)
Hot Stuff Smokin' Join Date: Dec 2007 Location: Republic, Ohio Posts: 3,001 Thanks: 2 Thanked 10 Times in 10 Posts Hot Stuff's Truck Pics	The leafs are the same between the 2. The only difference is the OVERLOAD springs. The little "helper springs" on top of the regular leaf pack. __________________ '03 Black 2500 QC/LB 4x4, 6 speed, BHAF, 2" lift, black H2's, 35" BFG MT's, B&W turnover, Juice w/ Attitude, 5" str8 pipe, BD lift pump, spin on filters, Firestone bags Ohio Coal Roller

07-04-2009, 12:56 PM	#8 (permalink)
seanth468 Diesel Head Join Date: Mar 2008 Location: Vidor, Texas Posts: 1,000 Thanks: 22 Thanked 43 Times in 37 Posts seanth468's Truck Pics	Im pretty sure you need the bump stop that bolts to the side of the frame. Its what the over load spring hits. Look at any 3500 frame to see it __________________ 07.5 6.7 Auto SRW SWB QC 4x4 White Lonestar Edition leveled B&W,S&B,DashHawk,4" TBE, and Smarty S-67 14ME Thanks to RSD

07-04-2009, 03:32 PM	#9 (permalink)
Hot Stuff Smokin' Join Date: Dec 2007 Location: Republic, Ohio Posts: 3,001 Thanks: 2 Thanked 10 Times in 10 Posts Hot Stuff's Truck Pics	Yeah, that's part of the overload spring setup. __________________ '03 Black 2500 QC/LB 4x4, 6 speed, BHAF, 2" lift, black H2's, 35" BFG MT's, B&W turnover, Juice w/ Attitude, 5" str8 pipe, BD lift pump, spin on filters, Firestone bags Ohio Coal Roller

07-06-2009, 06:04 PM	#10 (permalink)
tad490 Newbie Join Date: May 2008 Posts: 5 Thanks: 1 Thanked 0 Times in 0 Posts tad490's Truck Pics	not to turn this in too a air bag vs leaf spring talk, but the air bags are nice because you can ajust them as you need to, I haul a 302 fusion toyhauler and they work very well! firestones install nice and easy dodge 2500 __________________ stock 2500 slt,auto six speed,4x4,quad short box tows a 35 foot fifthwheel toyhauler

07-06-2009, 06:25 PM	#11 (permalink)
DodgeLuvr Diesel Head Join Date: Feb 2008 Location: On a Farm, Kentucky Posts: 1,707 Thanks: 82 Thanked 46 Times in 35 Posts DodgeLuvr's Truck Pics	just the heavier springs as stated above! __________________ 2008 Laramie "Speed costs money, How fast can you Afford to go?" Performance Shops I Prefer, www.rollinsmokediesel.com / www.k2dieselperformance.com / www.genosgarage.com

07-06-2009, 06:27 PM	#12 (permalink)
nostroker Cummins Nut Join Date: Mar 2009 Posts: 314 Thanks: 1 Thanked 5 Times in 5 Posts nostroker's Truck Pics	I have to agree with the airbags! Although mine is a 3500C/C with dual wheels, I have them and love'em! The overload will work, but cost you a little ride comfort unloaded. __________________ 2007 Dodge Ram Quad Cab 3500 C/C, 6.7 Cummins, auto, 9'-4" CM Hauler bed, Frontier replacement bumper, XRT w/delete Kit, S&B INTAKE KIT! thanks to K2, H&S this truck is fun to drive now!