C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Update on my diff decision

Thread Tools
 
Search this Thread
 
Old Mar 13, 2010 | 01:20 AM
  #1  
Ksths2's Avatar
Ksths2
Thread Starter
Pro
 
Joined: Jun 2008
Posts: 575
Likes: 10
From: Oskaloosa Iowa
Default Update on my diff decision

I had another thread going about which diff to buy for my 02 C5 6speed but it got closed since DTE, RPM, and ECS kinda got into it I guess. Anyway to make a long story short if any of you was wondering what i ended up doing, i ended up buying the Stage 3 from RPM transmissions w/ a 3.90 gear like you guys suggested.
The customer service was excellent at RPM right up until i drove 450+ miles to pick it up and swap it for mine but i got stood up twice that day but luckily i believe either it was Rodney &/or Todd showed up and i ended up getting it in the end and looks like a nice diff. i hope its as strong as it costs lol cuz damn I hated spending $2600 but i wanted RPM's reputation to build me a good diff so i'm gonna give it a whirl!
Plus i just bought the PFADT trans brace and motor mounts to compliment my existing DTE brace as well...... Lol anyway i hope this driveline is practially bullet proof now.
I was gonna call TJ and ask but i figured i get some thoughts on here first. What gear lube do i run with that rearend using the carbon clutches in it etc.????? And do i put the additive in it as before too?

Thanks!
Reply
Old Mar 13, 2010 | 03:29 AM
  #2  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default

Carbon clutches! WOW! Cool!

Going thru my rear end soon and adding some ZO6 output shafts. Well done on your rearend selection!

BC
Reply
Old Mar 13, 2010 | 07:34 AM
  #3  
lucky131969's Avatar
lucky131969
Tech Contributor
15 Year Member
Active Streak: 30 Days
Community Builder
Liked
 
Joined: Jan 2007
Posts: 19,246
Likes: 1,092
From: Dyer, IN
Default

Originally Posted by Ksths2
I was gonna call TJ and ask but i figured i get some thoughts on here first. What gear lube do i run with that rearend using the carbon clutches in it etc.????? And do i put the additive in it as before too?
After spending all that money and time, why would you not ask RPM directly? Who cares what the forum thinks, you have to follow the builders recommendations.............if you want a warranty.
Reply
Old Mar 16, 2010 | 03:05 PM
  #4  
Ksths2's Avatar
Ksths2
Thread Starter
Pro
 
Joined: Jun 2008
Posts: 575
Likes: 10
From: Oskaloosa Iowa
Default

oh i will but i just was curious to see what you guys thought too
Reply
Old Mar 16, 2010 | 03:43 PM
  #5  
Bill Curlee's Avatar
Bill Curlee
Tech Contributor
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Default

I just purchased the C6 ZO6 Diff output shafts, spider gear for the short shaft, seals for my 02 Z from Gene Culley and Patrick. I going to purchase some other hardened stuff like the clutch pack springs and the spider gear cross shaft to help the rear survive. Ordered the 300m cross pin shaft and Heavy Duty Clutch pack springs from RPM.

Will be going thru it my self very soon. Will post some pictures.

BC
Reply
Old Mar 24, 2010 | 08:05 PM
  #6  
Ksths2's Avatar
Ksths2
Thread Starter
Pro
 
Joined: Jun 2008
Posts: 575
Likes: 10
From: Oskaloosa Iowa
Default

FYI Update: RPM suggested Valvoline 75/90 synthetic w/ GM limited slip additive for the new diff.
Reply

Get notified of new replies

To Update on my diff decision





All times are GMT -4. The time now is 12:37 AM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE