looking to ditch the 2005 diff!

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Nov 13, 2013 | 09:30 AM

newvetteguy9

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From: Gambrills MD

looking to ditch the 2005 diff!

hey guys while i'm overseas i want to figure out the replacement for my 05 diff. what companies out there sell upgrades to hold 600-700Whp hoping not to break the bank but don't want to blow up the 05 and take my trans out with it! lets here my options

Nov 13, 2013 | 10:20 AM

Homeboy77

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From: Toccoa GA

There are so many things I need and want to do to my car. Replacing a differential and or transmission is not one of them. What I am looking to do is install the brace from RPM that provides support for the differential and transmission. It is $400, but will provide safety regarding my '05. However, you want more HP, so you may not have a choice but to swap.

I look forward to hearing more comments and suggestions on this.

Nov 13, 2013 | 10:22 AM

Devilish34

Burning Brakes

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From: Oxford Pa

RKTperformance.com.. Rick Kim... Helped me with my Z06 diff conversion.. I've got over 250 hard high 5k-low 6k launches at the track on it..

Nov 13, 2013 | 05:02 PM

newvetteguy9

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From: Gambrills MD

I'll check them out! Yeah I def have no choice but to swap mine out. Can't take the risk

Nov 13, 2013 | 05:12 PM

tennblkc6

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From: Memphis Tn

Quote:

Originally Posted by Homeboy77

What I am looking to do is install the brace from RPM that provides support for the differential and transmission. It is $400, but will provide safety regarding my '05.

got any more info on this piece...got a link?
thanks

Nov 13, 2013 | 05:24 PM

Devilish34

Burning Brakes

Joined: Nov 2009

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From: Oxford Pa

Quote:

Originally Posted by newvetteguy9

I'll check them out! Yeah I def have no choice but to swap mine out. Can't take the risk

Ricks cell is on his web page under contact..

Nov 13, 2013 | 08:24 PM

saplumr

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From: Saint Albans, WV

Might as well contact the best....RPM. The Z06 diff is a little pricey but well worth it. The brace won't help what you have now, it's a splatter waiting to happen.

Nov 13, 2013 | 08:34 PM

newvetteguy9

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From: Gambrills MD

but the z06 diff doesn't have gearing options, i'm assuming stock for stock the Z06 is the best bang for the buck but for an "upgrade" whats the best? can't remember what the stock gearing is off the top of my head for a Z06 someone please chime in.

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Nov 13, 2013 | 08:41 PM

saplumr

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From: Saint Albans, WV

3.42

Nov 13, 2013 | 08:53 PM

#10

newvetteguy9

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From: Gambrills MD

well thats what my car has in it now.....to stay 3.42 or go 3.90......i drive it everyday usually when i'm home. And I've driven completely across country TWICE in it!

Nov 13, 2013 | 08:57 PM

#11

saplumr

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From: Saint Albans, WV

Quote:

Originally Posted by newvetteguy9

well thats what my car has in it now.....to stay 3.42 or go 3.90......i drive it everyday usually when i'm home. And I've driven completely across country TWICE in it!

Diving across country with a 3.90 will wear you down as well as your wallet for fuel. Great for grunt though.

Nov 13, 2013 | 09:23 PM

#12

newvetteguy9

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From: Gambrills MD

yeah hmm......decisions decsions

Nov 14, 2013 | 07:02 AM

#13

Homeboy77

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From: Toccoa GA

Quote:

Originally Posted by tennblkc6

got any more info on this piece...got a link?
thanks

Sorry, not RPM. The two I know of are ECS (EastCoastSupercharging) and DTE.

Here is a thread on both:
http://forums.corvetteforum.com/c5-t...ial-brace.html

Here is info on the ECS Unit:
http://www.eastcoastsupercharging.co...ategory_id=471

DTE:
http://leperformance.com/dtediffbrace.aspx

Nov 14, 2013 | 11:43 AM

#14

Justasheet

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Get a C5 Z06 diff. It is the 3 rib model. Then contact Stanger383 (Norm) on this forum for a diff mounting bracket. Take the money you are saving and buy gears. C5 Z06 3 ribs hold to 1000hp.

I love mine.
Jeff

Nov 14, 2013 | 08:08 PM

#15

easyvette

Burning Brakes

Joined: Aug 2006

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From: Oxford PA

Quote:

Originally Posted by Justasheet

LMFAO I tried that a few times with 750rwhp... It didn't work out to well even with the brackets. RKT performance C6Z06 rear, never had a problem. Thank you RKT..

Nov 14, 2013 | 08:17 PM

#16

Joe_G

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Joined: Jul 2002

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From: St. Louis, MO

St. Jude Donor '08

Quote:

Originally Posted by Homeboy77

05 diffs all break the same. The case cracks in two and the pinion spits out the back.

In my case the brace did nothing. I still bent my mainshaft, as virtually everybody does when the case breaks.

That said mine lasted 301 hard launches. They are not made if glass. The key is to avoid wheel hop at all costs. Drag radials help a lot with that.

Nov 14, 2013 | 08:21 PM

#17

timd38

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From: Hudson WI

NCM Sinkhole Donor

I used a European Z51 diff case with Quaiffe center, C5 pinion bearing, hardened shafts, 3:73 gears and an ECS brace.

Nov 14, 2013 | 08:27 PM

#18

Joe_G

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From: St. Louis, MO

St. Jude Donor '08

^^^ The diff cooler is a great option if you road course....I have a diff temp gauge and it gets to 250 on the highway and would get up to 280 on the road course.

Nov 14, 2013 | 09:22 PM

#19

timd38

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From: Hudson WI

NCM Sinkhole Donor

Quote:

Originally Posted by Joe_G

^^^ The diff cooler is a great option if you road course....I have a diff temp gauge and it gets to 250 on the highway and would get up to 280 on the road course.

Can you send me info on the gauge?

Thanks!

Nov 14, 2013 | 10:09 PM

#20

Joe_G

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Joined: Jul 2002

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From: St. Louis, MO

St. Jude Donor '08

Quote:

Originally Posted by timd38

Can you send me info on the gauge?

Thanks!

Sure. Use an oil temp gauge as they go to 300 degrees. The diff fill plug is an odd metric size and you cannot find an adaptor to the ¼ sending unit. The standard adaptors that come with the gauge will not work. I bought a magnetic diff drain plug from Ecklers and drilled it and tapped it to the sending unit and it's been great for 7 years.

I put a toggle switch in the pod and got an extra sending unit and I can switch between trans and diff temp. The adaptors fit the transmission.

The transmission runs much cooker, my z51 car has a trans cooler. It runs around 220.

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