20K Rear Diff Fluid Change Results - Page 5 - Dodge Challenger Forum: Challenger & SRT8 Forums
Reply
 
LinkBack Thread Tools Display Modes
post #41 of 43 (permalink) Old 07-06-2019, 09:55 AM Thread Starter
Senior Member
 
Solidman's Avatar
 
Join Date: Jul 2017
Location: North Florida
Posts: 219
Thanks: 15
Thanked 72 Times in 48 Posts
Garage
Feedback Score: 0 reviews
(Thread Starter)
Quote:
Originally Posted by trippytro View Post
Centain amounts of flex and give are designed into these cars because of the high power, dont be surprised if you break something by stiffening it, just how those two demons pooped their gears out at the strip
Yes sir you are correct if you take out all the flex.....things have to move especially with high torque applied. As I learned in my 22 years with my 4wd Ram Truck and Mud Bogging (1st and 2nd place) too much movement will wreck parts. Not enough movement will wreck parts. In the middle is where we want to be. The Diff Brace does not lock the brace down.....it just limits the movement. The wheel hop before my mods were horrendous! Wheel hop will destroy parts! They have had plenty of failures with no brace. I know the brace keeps things in check...and has eliminated wheel hop on my ride. Fortunately....the Scat does not put near the torque on the rears as the Blown cars do. I believe the blown cars are taxing the drive train right to the limit IMHO.

I am aware of the notice on the Warranty with the Brace. That is subject to the dealership. Luckily I have some cool dudes that service me I would not take the Brace off regardless...it is so much an improvement.
Solidman is offline  
Sponsored Links
Advertisement
 
post #42 of 43 (permalink) Old 07-06-2019, 10:01 AM Thread Starter
Senior Member
 
Solidman's Avatar
 
Join Date: Jul 2017
Location: North Florida
Posts: 219
Thanks: 15
Thanked 72 Times in 48 Posts
Garage
Feedback Score: 0 reviews
(Thread Starter)
Quote:
Originally Posted by Rob446 View Post
Glad you caught the part about the warranty. The situation with Demon's is really strange. If a Demon breaks a diff on the drag strip it's covered under warranty unless it's been modified including adding a diff brace. Since the diff on the Redeye isn't warrantied for drag strip use it may be advantageous to install one anyway. Bottom line is unless it's a Demon FCU doesn't want to pay for breakage that occurs on the track.

I removed the original differential gear oil and installed RP 75W-140 in the Scat Pack. The original oil was medium brown, did not contain any metal, and smelled fine. The car was noticeably smoother with the RP gear oil but it was not a day and night difference like it was when RP gear oil was installed in the Ram. Unfortunately the RP gear oil did not reduce or change the whine.

Solidman, great tip on blowing the gear oil out of the diff with a blow gun, amazing how much oil was blown out after it had stopped dripping.
Rob I'm sorry to hear the RP did not do a better job on removing the whine.....but I'm glad it is a lot smoother. At least you peace of mind the good stuff is now protecting what u have. Did u test the rubber marks for evenness? Is the shifting smoother? I'm glad the blower tip helped......I learned that the hard way.
Solidman is offline  
post #43 of 43 (permalink) Old 07-06-2019, 10:10 AM
Senior Member
 
Ronan978's Avatar
 
Join Date: Aug 2017
Posts: 319
Thanks: 93
Thanked 66 Times in 54 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by trippytro View Post
Centain amounts of flex and give are designed into these cars because of the high power, dont be surprised if you break something by stiffening it, just how those two demons pooped their gears out at the strip


I’d say yes and no , if it were to stay my daily, I wouldn’t be going this route. But it’s beginning to lean towards a race car , so I’ll be upgrading drive line pieces as I go. Things usually break FROM the flex and movement such as wheel hop from loose diff and cradle bushings. Granted stiffening this up may put a harder hit on the axles or driveshaft , but for now on a stock stall , I can’t see it being damaging.


Sent from my iPhone using Tapatalk
Ronan978 is online now  
Sponsored Links
Advertisement
 
Reply

  Dodge Challenger Forum: Challenger & SRT8 Forums > Model Specific Discussion > Dodge Challenger SRT8 Specific > 6.4L / 392ci (2011 - ?)

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Dodge Challenger Forum: Challenger & SRT8 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome