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Thread: Help, I think

  1. #1
    Join Date
    Feb 2004
    Location
    Western, KY
    Posts
    433

    Help, I think

    After wading a few drive shafts up i need to know how to figure my critical speed or some thing of that sort so I can have my carbon fiber one made. (4L80E), 4.10's, 29.67" tire, my flat to flat measurement is 56.125". Ok, now on to what i have thrown out 3.5" .090 wall DOM steel shaft, 3" chromolly .065 wall, 4" .120 wall aluminum one so i guess what im asking does any body know what my critical speed is or what else is needed to help me fix this isshue? Dont really want to spend $850 on a carbon one if i can make do with some thing else.
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  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Just call Denny's Driveshafts and give them all the information and they will tell you what works best for your application and can build it for you with quality materials.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    Call Austin Drivetrain. They do awesome work and can help you out.

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

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