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 - Help Zone - Dodge Ram Problems, Complaints, & Solutions - Maintenance & Re > 3RD Generation Dodge Ram 2002 to 2008 Dodge Ram Trucks > Powertrain > 5.7L V8 Specific Topics


Latest Vendor News
Addictive Desert Designs!
Bayou Goat Mounts

Thread Tools
Old 05-24-2013, 01:10 PM
thekid0311 thekid0311 is offline
Dodge Ram Forum Senior Member

Join Date: Apr 2013
Location: Marion NC
Age: 26
Posts: 79
Gender: Male
Vehicle: 2005 Doge Ram Quad cab 4x4
Trim Level: Daytona
Color: Silver
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
thekid0311 is on a distinguished road
Default Fluids question

I have 119k on my truck and Im getting ready change and flush all fluids except the oil because I just changed it about 500 miles ago. As far as the rear diff goes when I fill it with 85/140 do I need to add the limited slip additive to it or will it be fine without it? Also Making sure I have the right weight for the the front, it is 75/90 right? Also is the gear oil in the transfer case the same as the rear diff and do I need to add the additive into it also?

Im replacing the filter on the trans and doing a complete flush because Ive been doing a lot more towing lately and I just thought it would be a good idea because Im also adding the 1 ton tranny cooler to my truck and a tranny temp gauge.

Fluids got changed at the dealership around 60k but money is tight so Im doing it myself and Ive done this before on other vehicles so Im know what Im doing I just want to make sure I get the right weights for my truck.
Men will follow out of fear but will die over respect
Reply With Quote
Sponsored links
Old 05-24-2013, 04:28 PM
bparsel bparsel is offline
Dodge Ram Forum Junior Member
Join Date: Apr 2013
Posts: 33
Gender: Male
Vehicle: 2014 Ram
Trim Level: Express
Color: Black
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
bparsel is on a distinguished road

Rear Diff is 75/140 synthetic. Use Royal Purple and you dont need an additive as its already in there. - Just Under 3qts

Front Diff is GL5 75/90 - 2qts

Transfer case is the same as your trans ATF + 4 - 3.5-4 Pints
Reply With Quote
Old 05-30-2013, 02:38 PM
SI Integra SI Integra is offline
Dodge Ram Forum Senior Member
Join Date: May 2013
Location: Cincinnati, OH
Posts: 90
Gender: Male
Vehicle: 03 Ram
Trim Level: SLT Sport
Color: Red
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
SI Integra is on a distinguished road

bparsel answered your question perfectly, but I wanted to add another alternative to royal purple is Lucas oil. They also are full synthetic with the additive present.

Good luck, none of the work is complicated.
Reply With Quote


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


All times are GMT -4. The time now is 07:21 PM.

= Copyright a Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.

=Gigathreads Network=
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