05 Diff Broke, Need help with part numbers
Thread Starter
Instructor
Joined: Apr 2009
Posts: 173
Likes: 1
05 Diff Broke, Need help with part numbers
Broke the diff cover clean off at the track today when launching it at about 800hp at the crank. I am wanting to convert to a c6 z06 diff using a t56 tail housing and 30 spline main shaft. Looking for part numbers for the housing and for the diff. I understand I will need new cv axles too? If so the part numbers. I have looked into the built diffs by rpm and dte and I think oem would be fine with a trans brace....thoughts? I do all my own work so all of it would be parts costs only which is why I am considering this route. I do not have slicks on the wheels but the track was prepped very well when it snapped.
Thread Starter
Instructor
Joined: Apr 2009
Posts: 173
Likes: 1
Thanks I will check that out. Yes im aware, I have a feeling the runout on this shaft will be trashed anyways, I rebuilt the transmission 2 months ago so I'd rather keep grinding on it with a better diff.
Race Director
Joined: Aug 2005
Posts: 13,592
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From: Hudson WI
NCM Sinkhole Donor
Pick the year you want and this will lead down the path of whatever you want.
http://www.tonkinonlineparts.com/
http://www.tonkinonlineparts.com/
Thread Starter
Instructor
Joined: Apr 2009
Posts: 173
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Yes it's a manual. For anyone that would like an update.... gm does not have a fully built diff, they will only sell you all the parts for one. A factory assembled getrag unit can be had from Zip or somewhere else I imagine although Zip offers a 3yr warranty. To go to a Z06 diff you will need the extension housing, longer bolt, 30 spline mainshaft on the transmission, snap ring kit, mainshaft pocket bearing and race, mainshaft rear bearing and race. This is because it is almost impossible to pull off the caged bearing without damage. If you have any questions feel free to ask.
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Thread Starter
Instructor
Joined: Apr 2009
Posts: 173
Likes: 1
Thread Starter
Instructor
Joined: Apr 2009
Posts: 173
Likes: 1
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
How much did your rear end handle before it let go? I don't do any drag racing so I hope it will be OK for a while.
Thread Starter
Instructor
Joined: Apr 2009
Posts: 173
Likes: 1
I drove it over a year with 800 at the crank and I drag raced it about 15 passes until it broke. Stock ones have broken sooner so there is no way to know. I had an ecs brace on the whole time. Part number 19132778 is the tail housing btw.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
I built a diff out of all new parts with a Quaife and if I had it to do over again, I would buy a used diff on the forum and then put the parts I want into it. The amount of small parts needed is real pain. I used the link I posted to find all the part numbers, it was a just a lot of time consumed to get them all.
I kept my stock 2006 diff just in case I ever need it as a spare.
I kept my stock 2006 diff just in case I ever need it as a spare.
