C5Z Diff Swap Into 05

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Mar 12, 2013 | 02:45 PM

ASarsano

Thread Starter

Racer

Joined: Jun 2010

Posts: 462

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From: Port Richey FL

C5Z Diff Swap Into 05

well thanks to the bracket nicely made by stanger383
swapped a built 04 Z06 Diff with 3.73 Gears into my 2005.
Amazing the night and day difference, but unfortunately the stock run flats cant handle the new gears there far to aggressive and loses traction with even a slightly hard acceleration. Time to upgrade to some better tires then hit the track and see what it can do.

IMG_0488 by ASarsano, on Flickr

IMG_0489 by ASarsano, on Flickr

IMG_0490 by ASarsano, on Flickr

IMG_0491 by ASarsano, on Flickr

IMG_0492 by ASarsano, on Flickr

IMG_0493 by ASarsano, on Flickr

IMG_0494 by ASarsano, on Flickr

IMG_0495 by ASarsano, on Flickr

IMG_0496 by ASarsano, on Flickr

IMG_0497 by ASarsano, on Flickr

Mar 12, 2013 | 04:40 PM

MikeyTX

Team Owner

Joined: Sep 2005

Posts: 29,113

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From: Big Bend Country, TX

St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21

NCM Lifetime Member

Great pictures

Mar 14, 2013 | 10:43 AM

Justasheet

Melting Slicks

Joined: Sep 2008

Posts: 2,286

Likes: 4

Did you have to grind some fins on the bottom of the diff to make it fit? It looks like it in the next to last pic.
Jeff

Mar 14, 2013 | 09:43 PM

stanger383

Drifting

Joined: May 2005

Posts: 1,655

Likes: 9

From: Avon Indiana

St. Jude Donor '09

Glad to see it all bolted up. I was wondering if you had done the install yet...... Did everything bolt in ok? Any issues with the brackets? Glad you running well!!!

Mar 16, 2013 | 12:18 AM

ASarsano

Thread Starter

Racer

Joined: Jun 2010

Posts: 462

Likes: 0

From: Port Richey FL

no issues got it in on the weekend. took a bit of cutting on the fins i wasn't sure exactly how much so i bolted it up jacked the frame up took a measurement and got the whizz wheel and kept cutting and testing till i had just enough clearance. wanted to leave as much of the fins as posable, for best cooling.
Might play around with some shims coming up, as the aftermarket 3.73 gears make an immense amount of noise. figure if i can shim it right i can quiet it down some so taking a call while driving will be posable if need be. lol

Mar 16, 2013 | 01:02 PM

stanger383

Drifting

Joined: May 2005

Posts: 1,655

Likes: 9

From: Avon Indiana

St. Jude Donor '09

When i put 3.73s in my c5 they were quiet as stock... hopefully you can quiet them down

Mar 16, 2013 | 01:17 PM

Dragracer_Art

Burning Brakes

Joined: Apr 2007

Posts: 972

Likes: 11

From: Dawsonville, GA

If you hear noise... you have a problem.

Did you check to be sure oil was in it ?

Mar 18, 2013 | 10:17 AM

ASarsano

Thread Starter

Racer

Joined: Jun 2010

Posts: 462

Likes: 0

From: Port Richey FL

Yes there oiled up with royal purple gear oil. 2 QTs Not a grinding or wearing noise, just a wining which I've hear is common with non stock gears. We're the gears sit a little off from where factory gears ride on the spline

Last edited by ASarsano; Mar 18, 2013 at 10:41 AM.

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Mar 22, 2013 | 04:42 PM

Justasheet

Melting Slicks

Joined: Sep 2008

Posts: 2,286

Likes: 4

Did you figure out your gear issue?
Jeff

Mar 23, 2013 | 11:43 AM

#10

ASarsano

Thread Starter

Racer

Joined: Jun 2010

Posts: 462

Likes: 0

From: Port Richey FL

not yet, from what I've researched its just the gear set up which will need to be adjusted or shimmed. Not a big deal at the moment as the noise isn't wearing or doing and damage to any thing. Its just a noise, I've opened the diff up and checked no wearing or damage. so for now I'm leaving it as is. Eventually ill try the shims and if i cant get it where i want it look into having the diff adjusted or rebuilt. I think the biggest reason the diff makes noise is that fact that it was built for a C5Z06 with an aftermarket (upgraded) tranny so the diff was set to that tranny then pulled off and swapped into a c6, quite a change so the set up need adjustment on the backlash ext.

Mar 24, 2013 | 10:48 AM

#11

Justasheet

Melting Slicks

Joined: Sep 2008

Posts: 2,286

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Did you use some rubber washers to mount the bracket to the diff? It looked like it in your pics.
Jeff

Mar 24, 2013 | 11:42 AM

#12

ASarsano

Thread Starter

Racer

Joined: Jun 2010

Posts: 462

Likes: 0

From: Port Richey FL

i honestly cant recall all the hard wear came with the bracket. deff a good point to look into.

Mar 24, 2013 | 03:32 PM

#13

trayack

Drifting

Joined: Sep 2009

Posts: 1,330

Likes: 61

From: Nantucket MA

I'm looking to do this too. The bracket stanger383 made for you, is it weld on or bolt on?

Mar 24, 2013 | 06:52 PM

#14

saplumr

Race Director

Joined: Oct 2005

Posts: 14,555

Likes: 1,255

From: Saint Albans, WV

Quote:

Originally Posted by trayack

I'm looking to do this too. The bracket stanger383 made for you, is it weld on or bolt on?

Spend the cash and upgrade to a newer C6 or even better a Z06 diff.

Mar 24, 2013 | 08:30 PM

#15

trayack

Drifting

Joined: Sep 2009

Posts: 1,330

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From: Nantucket MA

^....you write the check. I'm having to drop a lot more than I wanted to as it is on other upgrades.

Mar 24, 2013 | 08:47 PM

#16

saplumr

Race Director

Joined: Oct 2005

Posts: 14,555

Likes: 1,255

From: Saint Albans, WV

Quote:

Originally Posted by trayack

^....you write the check. I'm having to drop a lot more than I wanted to as it is on other upgrades.

I know, I just saw it in the other thread. You gotta do what you can afford.

Mar 25, 2013 | 12:23 AM

#17

ASarsano

Thread Starter

Racer

Joined: Jun 2010

Posts: 462

Likes: 0

From: Port Richey FL

he made me the bolt in one. I chose not to go with the newer c6 diff as then u would need to swap the tranny extension housing as the bolt patterns for the 05 is unique to the 05 only (same bolt pattern as the c5) so it much more involved then just buying the 3 times more expensive diff. that was a major decision factor for me. then the fact that i had a built C5Z diff with aftermarket 3.73 gears laying in the garage I had built for my old C5.

Apr 1, 2013 | 01:56 PM

#18

trayack

Drifting

Joined: Sep 2009

Posts: 1,330

Likes: 61

From: Nantucket MA

Are rubber isolaters between the diff mounts and the top metal adapter plate? I just got Norma's kit and didn't see any included.

- Travis

Apr 1, 2013 | 03:20 PM

#19

Justasheet

Melting Slicks

Joined: Sep 2008

Posts: 2,286

Likes: 4

Sure looks that way but Norm said he didn't use any. Something the OP must have done.
Jeff

Jun 11, 2024 | 05:46 PM

#20

johnathan howard

1st Gear

Joined: Jun 2024

Posts: 1

Likes: 0

In need of the c6 to c5 diff mount I hear a guy named 383 stranger makes them?

[QUOTE=ASarsano;1583344386]well thanks to the bracket nicely made by stanger383
swapped a built 04 Z06 Diff with 3.73 Gears into my 2005.
Amazing the night and day difference, but unfortunately the stock run flats cant handle the new gears there far to aggressive and loses traction with even a slightly hard acceleration. Time to upgrade to some better tires then hit the track and see what it can do.