Rearend questions
Rearend questions So I am new to the whole corvette thing I want to do a set of gears in my 02 c5z. My questions are is the stock rear strong enough to hold 1.6 60 foots or should I upgrade to a dte rear end? Im building the car to be all motor so I will be relying on good short times to get good et's. Also what gear would you recommend 3.90s or 4.10s I still want the car to be able to drive down the highway nice at highways speeds without reving the motor really high while crusing down the highway. Thanks pat
I cut 1.56 to 1.64 60's for the past 2 years on a set of Motive gears in the stock housing using a DTE brace and PFADT trans mount. For the 6 years before that I beat the hell outta the stock 3.42 rear (same DTE brace) until it finally gave out (1.58 to 1.68 60's).
The rear can hold as long as you dont wheel hop the hell out of it.....Def. get the DTE brace.....added insurance....I run it, but it is a matter of time for me with what I have going through it on low boost.....
Teching In
Joined: Apr 2009
Posts: 9
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I agree, wheel hop is your enemy. upgrade to at least bilstein shocks too. and ditch the runflats
The left side output shaft is the weak link in the C5 differential. I snapped mine when I launched at the dragstrip with drag radials and a textralia clutch. My first pass with this clutch I left at 4400 rpm and it bogged down to 1600 rpm, for a pretty slow 60' time. So I made the mistake to increase the launch rpm. I went past my target of 5,000 and ended up closer to 6.
So now I have a hardened output shaft and new posi clutches. I still need to get the DTE brace and Z06 axles.
So now I have a hardened output shaft and new posi clutches. I still need to get the DTE brace and Z06 axles.
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So I am new to the whole corvette thing I want to do a set of gears in my 02 c5z. My questions are is the stock rear strong enough to hold 1.6 60 foots or should I upgrade to a dte rear end? Im building the car to be all motor so I will be relying on good short times to get good et's. Also what gear would you recommend 3.90s or 4.10s I still want the car to be able to drive down the highway nice at highways speeds without reving the motor really high while crusing down the highway. Thanks pat
1st.Yes the stock rear end will hold 1.6 60'...But Not high RPM launches.
Also the left out put shaft is on borrowed time.
2nd.How Much power are you planing on putting to the ground?
This is the most important question of all. This will help answer all the other questions and help you plan out your build.
I will be glad to help, just contact me and lets talk.
Thanks
Mike Yeager
Last edited by Mike Yeager at ECP; May 29, 2009 at 12:38 AM.
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Hi Pat, if you were to buy a built diff from me I would sell you a RPM built Stage I $1395, Stage II $1695 and both of these prices include all the shipping charges, I will also pay for the core to be sent back. Both of these diff's will handle your power range of 475hp/tq but if you are going to launch the car at real high RPMs then we need to upgrade the C6 ZO6 left output shaft to a 300m harden shaft, $299 extra.
Just let me know I will be glad to help.
I am a supporting vendor on CF and I will be one here very soon!
Thanks
Mike Yeager
Just let me know I will be glad to help.
I am a supporting vendor on CF and I will be one here very soon!
Thanks
Mike Yeager
Launching!
Joined: Oct 2004
Posts: 252
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From: PA
I run 1.50's (9.80's) with the stock rear with just a hardened output shaft, no brace.
I wouldn't build Corvette for short times, it will get VERY expensive rather quickly. But if that is truely your goal, look into a solid rear and just do it once.
I wouldn't build Corvette for short times, it will get VERY expensive rather quickly. But if that is truely your goal, look into a solid rear and just do it once.
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Hey Pat thanks for the PM, just give me a call when you are ready and we will set you up with everything you need for your swap. Make sure not to bust up your stock unit as it has a value for the core.
