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Technical Info: 3rd Generation: DRIVETRAIN Technical discussion of third generation (2003 - 2007) engine and drivetrain questions, solutions and upgrades.
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Old 08-19-2019
45Auto's Avatar
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48RE to 46REF?? is it worth it? Was going to buy a 3500 with the Aisn, but returned to reality. That would of been a lot of Denaro to tow 5-10 MPH faster. The difference OD4th and 3rd with the 48RE is to big. At present, 60 mph with the 48RE in 3rd is like 23-2400 rpm! should I push it more??
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04 Laramie (H) 2500 HO QC 4X4 48RE 3:73 LS Putco Boss Bars LineX AFE Stage II Silver Stars 956 Moto's high idle ROKK sensor FASS MagHytec Diffs & DD trans pan

The Second Amendment is only vague if:
1. You cannot read and comprehend the English language
2. Choose to selectively alter the meaning of "the people" from amendment to amendment
3. Have never read any of the writings of the Founders

Anything else is a willful effort to twist the meaning of the Constitution to fit an agenda, or profound stupidity."

Last edited by 45Auto; 08-19-2019 at 03:55 PM..
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Old 08-19-2019
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3.55 rear gears?
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01.5,Red QC Sport SWB,HO,6spd,4x4,cowl hood, Drag Comp,4"ex., fuel press. gauge, boost&pyro gauges, bhaf, single Holley lift pump next to the fuel tank/13psi WOT, Vulcan Big Line, cheapo fuel cooler, Amsoil in the trans. & Valvoline in the pan, 62-65-.70A/R, ARP studs, kevlar/ceramic SD clutch, jammer 100's

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Originally Posted by jetfueljockey View Post
Doc says I'm in pretty good shape for an 83 year old guy.....one of these days I need to tell him I'm 59.


Time to turn so's you don't burn.

Last edited by Clunk; 08-19-2019 at 07:42 PM..
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Old 08-19-2019
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Clunk Clunk is offline
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Maybe Rickson 19.5's?
https://www.ricksontruckwheels.com/wheels-dodge-srw.php

https://www.ricksontruckwheels.com/tires-28570R195.php
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01.5,Red QC Sport SWB,HO,6spd,4x4,cowl hood, Drag Comp,4"ex., fuel press. gauge, boost&pyro gauges, bhaf, single Holley lift pump next to the fuel tank/13psi WOT, Vulcan Big Line, cheapo fuel cooler, Amsoil in the trans. & Valvoline in the pan, 62-65-.70A/R, ARP studs, kevlar/ceramic SD clutch, jammer 100's

Quote:
Originally Posted by jetfueljockey View Post
Doc says I'm in pretty good shape for an 83 year old guy.....one of these days I need to tell him I'm 59.


Time to turn so's you don't burn.

Last edited by Clunk; 08-19-2019 at 07:47 PM..
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  #4  
Old 08-21-2019
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How much you towing?!?
Unless it's like 20k# you probably just need to put that sucker in "D" and let that cummins work in it's sweet spot...under 2000 rpm...imho.
Or like Clunk said, change the rear ratio.
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'07, megacab, 2WD, Dually, 6.7, auto,
H&S XRT, jasper turbo, ETE tranny, 485k mi !!
'09, quad cab, Laramie, 2WD, Dually, 6.7, auto.
H&S mini maxx, something fell off under the truck 265k mi
My Other Truck is a Fire Engine!!
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  #5  
Old 08-22-2019
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1) Trans temp gage 2) spin on filter kit in pressure line to trans cooler 3) more trans cooler 4) don't let it hunt between 3 & 4. Increased line pressure is good too. JMO
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'06 2500 Brilliant Black Pearl Thunder Road, QC, 4X4, G56 w/ SBDD, Home Brew in the gearboxes Volant CAI, ATS Arc Flow , Airdog 100, 5" Diamond Eyes pipes, Smarty JR, Warn lock-outs, drilled and slotted rotors, HBS steering stabilizer, Pacbrake airbags, Bilstiens, RP 15W40 , 2 BIG BALLS (shift knobs) from Geno's, 5th wheel slider, step bars. The next mod is........

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  #6  
Old 08-31-2019
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355 gears, 285 tires towing GW just a tad north of 18K lbs. And a CTS2
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04 Laramie (H) 2500 HO QC 4X4 48RE 3:73 LS Putco Boss Bars LineX AFE Stage II Silver Stars 956 Moto's high idle ROKK sensor FASS MagHytec Diffs & DD trans pan

The Second Amendment is only vague if:
1. You cannot read and comprehend the English language
2. Choose to selectively alter the meaning of "the people" from amendment to amendment
3. Have never read any of the writings of the Founders

Anything else is a willful effort to twist the meaning of the Constitution to fit an agenda, or profound stupidity."
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  #7  
Old 09-02-2019
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And it won't haul that in OD ?
I mean, yeah, it's gonna drop 5-10 mph on a good hill, but it oughta be happy running 65 in OD.
My 99 would run 65 at 1800, or 70 at 2000 for that matter in OD pulling a 32 ft camper.
I could pull the shed trailer empty at 70 no problem, or with a couple 8 wides, and it weighs 7-8K# empty.
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'07, megacab, 2WD, Dually, 6.7, auto,
H&S XRT, jasper turbo, ETE tranny, 485k mi !!
'09, quad cab, Laramie, 2WD, Dually, 6.7, auto.
H&S mini maxx, something fell off under the truck 265k mi
My Other Truck is a Fire Engine!!

Last edited by smokediver; 09-02-2019 at 06:42 AM..
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  #8  
Old 09-04-2019
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Waste of time if you ask me. And twice the expense when you have to rebuild it. Want an over drive or splitter? Install a Gear Vendors.
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  #9  
Old 12-18-2019
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I'd go back and look at the 3500 again.. Since my "unfortunate upgrade" to the 2018 3500 I got to replace the 04.5 I rolled. The 04.5 had a lot of upgrades I wanted to do but never got around to like air suspension, exhaust brake, etc. This 2017 now has everything I ever wanted on a powertrain. The only thing I want to upgrade now is just the bumpers. This new 3500 feels and drives more like my Fire Engines do. It feels more like a real truck. And the power and torque in the 2018 is much more than my 04.5 with minor upgrades. The largest thing I towed so far was a 35' @ about 28K. Truck is rated to tow 32K. I had no issues at all pulling the mountains north of us on I5 to Oregon. But 2018 is heavy, unloaded it is 9800# I have no regrets digging deep and making that purchase.
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End over end down a canyon.. truck is FUBAR: 2004.5 2500 HO 600 4X2 SLT QC LWB 48RE / 11.5 4.10 Limited Slip / ROKK sensor / FASS 95gph / Boost Fooler / Issapro Gauges / Rebuilt Engine with many mods including ARP studs / Trans rebuilt performace parts including builet shafts.

2018 3500 Laramie Crew Cab 4X4 Long Box / Bone stock for now.

98 2500 4X4 Reg Cab / 5 Speed / Bone stock
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  #10  
Old 01-29-2020
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Hey Lupus, how u been?
The 48RE AND 3:73’s with my Gross Combined is a little north of 18K lbs. when I pull Spooner Summit put of Carson NV; I have pulled that 6% grade in 3rd, about 35 mph, result of that 12 mile grade is high trans and water temp numbers. Did it once in 2nd at about 31/32 mph around 22/2300 R’s and was able to keep trans temp to not hit 200*. Sure beats 215/220**!
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04 Laramie (H) 2500 HO QC 4X4 48RE 3:73 LS Putco Boss Bars LineX AFE Stage II Silver Stars 956 Moto's high idle ROKK sensor FASS MagHytec Diffs & DD trans pan

The Second Amendment is only vague if:
1. You cannot read and comprehend the English language
2. Choose to selectively alter the meaning of "the people" from amendment to amendment
3. Have never read any of the writings of the Founders

Anything else is a willful effort to twist the meaning of the Constitution to fit an agenda, or profound stupidity."
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