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Topic: New Rear End??

in Forum: C3 Driveline Components


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New Rear End??

Posted: 11/12/09 6:15pm Message 1 of 4
shanes79
Former Member
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Tacoma, WA - USA
Joined: 10/30/2007
Posts: 85
Vette(s): 1979 L48 Resto-Mod. ZZ383 w/ TKO-500 manual transmission. Centerforce clutch. Tail light conversion. A/C. BeCool radiator. Red exterior with custom black and white leather interior by Mid America Motorworks.
Hello everyone.  Haven't been on C3VR lately..bust with work.  Done some things to the Vette though...and my question is this.  I plan on dropping a ZZ383 crate motor into the Red Dragon. GM advertises 425HP with 449 ft/lbs Torque.  I know the rear diff. on the C3 is a lim-fac when upgrading to a higher performance motor. Anyone see any issues with keeping the stock rear with that much muscle??

Thanks.



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New Rear End??

Posted: 11/13/09 11:29am Message 2 of 4
VetteSpecialties
Former Member
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Mounds View, MN - USA
Joined: 5/24/2007
Posts: 1031
Vette(s): 70 LT1 coupe, 69 350 HP coupe, 69 390HP 427 coupe, 71 LS5 convert, 85 coupe, 93 coupe
Factory Corvettes made as much as 435 HP and held up OK.  Of course, the harder you abuse it the shorter it's life, but I know people who have given theirs a lot of abuse and they are still working.

Larry



New Rear End??

Posted: 11/14/09 7:09am Message 3 of 4
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lukesvette
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HOWELL, NJ - USA
Joined: 5/18/2004
Posts: 6812
Vette(s): 1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.
Keep after your universal joints....Wink


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New Rear End??

Posted: 11/14/09 5:32pm Message 4 of 4
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20218
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Yeah...your half-shafts will likely give up da ghost long before the diff will. The actual diff is pretty bullet proof, in most cases, unless there is a problem with it to start with.


Joel Adams
C3VR Lifetime Member #56    
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

in Forum: C3 Driveline Components


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