DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Mod Zone - Custom Dodge Ram Mods - Dodge Ram Performance > Custom Dodge Ram Performance Mods - Engine - 4.7 Liter V8


Notices

Custom Dodge Ram Performance Mods - Engine - 4.7 Liter V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 4.7-liter V8 engine - 310 horsepower, 330 lb-ft of torque.


Latest Vendor News
AutoAnything
Addictive Desert Designs!
United Radio
Bayou Goat Mounts

Reply
 
Thread Tools
  #1  
Old 02-27-2012, 09:47 AM
starquestbd22's Avatar
starquestbd22 starquestbd22 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jan 2011
Location: NC
Age: 32
Posts: 2,645
Gender: Male
Vehicle: 2004 Dodge Ram 1500 4X4
Trim Level: Sport quad cab
Color: Bright Silver Metallic
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 5
Rep:360
starquestbd22 is just really nicestarquestbd22 is just really nicestarquestbd22 is just really nicestarquestbd22 is just really nice
Default What is required for a gear swap?

Hi all. I have read and know about ratios and limited slip and the like but I have been wondering (and am clueless) about what is involved in a total gear swap, specifically on a third gen truck. I have considered it on my 06 4.7 to try to compensate for the lack of power but I would also like to know for future reference in case I end up trading for a hemi and decide to regear it. So here are my questions...

What parts would be required to go from the stock gearing to a 4.10 or 4.56? Just a ring and pinion gearset? Would it be better or is it even an option to go with a more complete unit like the Detroit Truetrac or something similar? I would have to swap both the front and rear gears right?

Also, as for my current 06 4.7....it already has the 3.92 LSD from the factory so if I were to consider swapping it I would go with the 4.56. I don't think the 4.10 would be enough difference. Any opinions on how much difference the 4.56 would make over the stock 3.92?

Thanks and I apologize if I asked something totally ridiculous, lol.
__________________
06-08 chrome clads w/33" Cooper Discoverer H/T Plus, Mopar tailgate spoiler, debadged door trim & tailgate emblems, 13" antenna, LED dome & maps, Magnaflow 22" SI/DO, 18% tint, "HEMI" hood spears, VHT tinted tails & third brake light, Lamin-x optic blue fogs, leveled w/McGaughys 2" drop shackles.
Reply With Quote
Sponsored links
  #2  
Old 02-27-2012, 02:12 PM
snrusnak's Avatar
snrusnak snrusnak is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jan 2011
Location: Orlando
Age: 27
Posts: 13,388
Gender: Male
Vehicle: 2010 Dodge Ram 1500
Trim Level: SLT
Color: White
Engine: 2008-20?? 287ci (4.7L) PowerTech V8 310hp 330lb/ft
Rep Power: 12
Rep:1385
snrusnak has much to be proud ofsnrusnak has much to be proud ofsnrusnak has much to be proud ofsnrusnak has much to be proud ofsnrusnak has much to be proud ofsnrusnak has much to be proud ofsnrusnak has much to be proud ofsnrusnak has much to be proud ofsnrusnak has much to be proud ofsnrusnak has much to be proud of
Default

Going from 3.92 to 4.10 is a minor change that would hardly be felt and probably not worth the cost (especially with 4x4). Yes you have to match the front and rear ratios.

I've never done it but I believe what is need is the following: Ring and pinion gears, gasket kit, wheel bearings(maybe), fluid, and if you want LSD then an LSD unit(whether it be oem or aftermarket). I think they have "master install kits" that include all the gaskets, bearings, and other misc stuff. So you'd just need the master install kit, gears, and fluid, and LSD if wanted.

It's supposed to be a fairly easy job just sort of intimidating. I've been thinking of doing it myself on my truck to try to learn something new...but am told I'd need a press for something so I don't know...lol
__________________
Sean

Breathing in and out is good enough for me.
Reply With Quote
  #3  
Old 03-03-2012, 02:35 PM
THK THK is offline
Dodge Ram Forum Member

 
Join Date: Jun 2011
Location: Out West
Posts: 65
Gender: Male
Vehicle: 02 Dodge Ram
Trim Level: ST
Color: Black
Engine: 2002-2007 287ci (4.7L) PowerTech V8 235hp 295lb/ft
Rep Power: 0
Rep:10
THK is on a distinguished road
Default

If you do the change and you have a posi (OEM), dump the carrier for a good aftermarket unit. I don't trust the factory c clips.
Reply With Quote
  #4  
Old 03-03-2012, 05:08 PM
starquestbd22's Avatar
starquestbd22 starquestbd22 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jan 2011
Location: NC
Age: 32
Posts: 2,645
Gender: Male
Vehicle: 2004 Dodge Ram 1500 4X4
Trim Level: Sport quad cab
Color: Bright Silver Metallic
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 5
Rep:360
starquestbd22 is just really nicestarquestbd22 is just really nicestarquestbd22 is just really nicestarquestbd22 is just really nice
Default

So other than the shims and other small pieces, the major components I would need are the ring and pinion gear set for the front and rear and a new LSD unit (if the truck wasn't factory LSD or if I wanted to replace mine)? I have read about the factory LSD c-clip issues but if you wanted to keep the stock LSD you would only need the new gear sets?
__________________
06-08 chrome clads w/33" Cooper Discoverer H/T Plus, Mopar tailgate spoiler, debadged door trim & tailgate emblems, 13" antenna, LED dome & maps, Magnaflow 22" SI/DO, 18% tint, "HEMI" hood spears, VHT tinted tails & third brake light, Lamin-x optic blue fogs, leveled w/McGaughys 2" drop shackles.
Reply With Quote
  #5  
Old 03-03-2012, 07:07 PM
The Big Horn's Avatar
The Big Horn The Big Horn is offline
Dodge Ram Forum Member
 
Join Date: Feb 2012
Location: Phenix City, AL / Ft. Benning, GA
Age: 29
Posts: 58
Gender: Male
Vehicle: 2012 Ram 1500 QC 4WD
Trim Level: Big Horn
Color: True Blue Pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:10
The Big Horn is on a distinguished road
Default

If you have never done a gear swap before, you are in for a huge headache. I did the gears on my JK, took us about 24 hours of labor to get it right. The easy part is swapping the ring and pinions. Where it gets tricky is figuring out the proper pinion depth, pinion preload, carrier shims, ring and pinion pattern (they do not just lign up like "gears" do), you need an in-lb tq wrench, ft-lb torque wrench and typically something god awful torque producer to crush the crush sleeve that goes in the pinion for the rear diff, and same for front if you have a solid axle front (2500 and up). Also their is a special tool to get the measurement of backlash your gears have and needs to be dialed in. After doing it once, I will gladly pay someone to do it for me next time. Just a cautionary word.
__________________
[CENTER][SIGPIC][/SIGPIC]
RCX 6" w/ Kicker Bars, 35X12.50R20 Toyo Open Country M/T's, DS Trinity, Custom Muffler Delete, K&N 63 Series CAI, Trailer Tow Mirrors, Kobalt 3500 Series Tool Box, Airlift 1000's
[/CENTER]
Reply With Quote
  #6  
Old 03-03-2012, 08:48 PM
GTyankee's Avatar
GTyankee GTyankee is online now
Dodge Ram Forum Member

 
Join Date: Dec 2009
Location: San Diego East County, Ca
Posts: 19,068
Gender: Male
Vehicle: 2009 Dodge Ram 1500 2X4
Trim Level: quad cab SLT
Color: sunburst orange pearl
Rep Power: 20
Rep:2615
GTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond repute
Default

Yukon Gear is one of this RamforumZ site Sponsors & a very good manufacturer
you should check out the sponsor list
Sometimes they give us a discount

I watched a bunch of shadetree mechanics tackle a Jeep rear end, none of them had any kind of torque wrenches or gauges. The following week the rear end grenaded again.
The shims were not replaced properly.
There should always be someone there that has done it before, even if they are retired from the business & just watch you do it
When you pay for a mechanic, you get their knowledge, labor & tools, sometimes it is worth the price
__________________
Ram 1500 SLT Quad cab, 5.7 HEMI(R) MDS VCT, 5 speed auto 545RFE, 3.55 differential gears, 18" Magnaflow muffler, EGR bug deflector, Bushwacker fender flares, customized Nfab nerf bars, CB radio, Autonet wi-fi router, custom soft tonneau cover, Line_X bedliner, DEBO Step, build date 10/15/08 a Wednesday built vehicle
Reply With Quote
  #7  
Old 03-03-2012, 09:04 PM
GTyankee's Avatar
GTyankee GTyankee is online now
Dodge Ram Forum Member

 
Join Date: Dec 2009
Location: San Diego East County, Ca
Posts: 19,068
Gender: Male
Vehicle: 2009 Dodge Ram 1500 2X4
Trim Level: quad cab SLT
Color: sunburst orange pearl
Rep Power: 20
Rep:2615
GTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond reputeGTyankee has a reputation beyond repute
Default

Master Differential install kits include
Kits include Ring Gear Bolts, Shims, Crush Sleeve or Spacer, Pinion Seal, Pinion Nut, Gasket or RTV Silicone and Timken Tappered Roller Bearings were applicable.

Then you still have the ring & pinion gears

I am not trying to dissuade you, just giving you information
__________________
Ram 1500 SLT Quad cab, 5.7 HEMI(R) MDS VCT, 5 speed auto 545RFE, 3.55 differential gears, 18" Magnaflow muffler, EGR bug deflector, Bushwacker fender flares, customized Nfab nerf bars, CB radio, Autonet wi-fi router, custom soft tonneau cover, Line_X bedliner, DEBO Step, build date 10/15/08 a Wednesday built vehicle
Reply With Quote
  #8  
Old 03-11-2012, 12:08 PM
TheSatinPumpkin's Avatar
TheSatinPumpkin TheSatinPumpkin is offline
Dodge Ram Forum Senior Member!
 
Join Date: Apr 2010
Location: Robles Junction/Three Points, AZ
Posts: 3,735
Gender: Male
Vehicle: 2004 Dodge Ram
Trim Level: SLT
Color: Satin Orange
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 7
Rep:597
TheSatinPumpkin is a name known to allTheSatinPumpkin is a name known to allTheSatinPumpkin is a name known to allTheSatinPumpkin is a name known to allTheSatinPumpkin is a name known to allTheSatinPumpkin is a name known to all
Default

It should provide a noticeable difference.
Quote:
Originally Posted by starquestbd22 View Post
Any opinions on how much difference the 4.56 would make over the stock 3.92?

Thanks and I apologize if I asked something totally ridiculous, lol.
__________________



Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Advertisement






All times are GMT -4. The time now is 12:22 AM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum