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Thread: CVPI Driveshaft

  1. #1
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    CVPI Driveshaft

    Hey Guys
    Would it be worth it for me to buy a CVPI driveshaft and install it? I`m running 4`10 gears and get vibration around 100+ with the factory shaft.
    So the question is can the CVPI shaft hold up or will it turn into a wet noodle too?

  2. #2
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    just take yours to a driveshaft shop and have it balanced, if your allready having vibrations cheak your tailshaft bushing for damage
    My garage
    http://www.mercurymarauder.net/forum...=view&id=10419

    04/30/11
    1/8 mile 7.7430 at 89.24
    1/4 mile 12.16 at 110.66(calculated)

  3. #3
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    balancing will increase critical speed only if the balance job was imperfect in the first place, beyond a perfect balance you are gonna run into limitations w/ the shaft itself

    babbage where are you?
    Steve H., Charles County, MD www.carfap.com
    1994 Lincoln Town Car. 98-02 front brakes, P71 steering and sway bars, Eaton swap build underway using TorkTech 4.6 2v intake kit.
    2011 Infiniti M37x
    2004 F250, v10 6 speed manual. ex-US Forest Service truck
    2000 BMW M5
    1976 Jeep DJ5 (postal)

  4. #4
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    Quote Originally Posted by Stranger in the Black Sedan View Post
    babbage where are you?
    He's busy thinking how he's going to get his time down now that I have N2O... Check ebay for driveshafts too...
    11.931 @ 116.33 (MT ET Streets)
    12.073 @ 118.43 (Nitto 555)

    I love the smell of Nitromethane and rubber in the morning!
    Drag racers prayer:
    As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my ride." -Amen

  5. #5
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    I did the ebay game, it is tough to get sellers to verify color codes, and then even toughter to get a shaft that does not have dings and cuts in it from rough junkyard handling. It can be done but you have to make sure the seller is willing to accept the shaft back if it ends up being wrong or damaged.
    Steve H., Charles County, MD www.carfap.com
    1994 Lincoln Town Car. 98-02 front brakes, P71 steering and sway bars, Eaton swap build underway using TorkTech 4.6 2v intake kit.
    2011 Infiniti M37x
    2004 F250, v10 6 speed manual. ex-US Forest Service truck
    2000 BMW M5
    1976 Jeep DJ5 (postal)

  6. #6
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    What are the codes to a CVPI shaft ??? just so I do not get ripped off.

  7. #7
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    Good luck. Get a dynotech carbon fiber shaft. I would normally recommend a Dynotech MMC shaft but they're no longer available. If you pull it and get the measurements and specifications on the front & rear yokes you can get a MMC shaft custom-made from Mark Williams Enterprises.
    Thanks to Darrin @ BC Automotive:
    $1800 and it was worse than when he started!

    Brian (FordNut) FPG # 1458 of 7838
    03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
    then 476/410 D1SC ProCharged on stock block
    then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
    then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
    Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker

    03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
    03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
    04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
    01 F150 longbed
    01 F150 shortbed
    00 F150 4x4 stepside
    01 F150 4x4 7700
    68 Stang FB (70 351C 4V, 4 wheel discs, project car)

    Mods listed here (some items not current): FordNut's Mods

  8. #8
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    How about Reinharts shaft on his page ??

  9. #9
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    Dont we already have CVPI driveshafts???
    Thats what i was told in indy when i met steve babcock.

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  10. #10
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    Quote Originally Posted by ddogg626 View Post
    How about Reinharts shaft on his page ??
    I was just thinking that I thought I saw that still advertised on Dennises site.
    11.931 @ 116.33 (MT ET Streets)
    12.073 @ 118.43 (Nitto 555)

    I love the smell of Nitromethane and rubber in the morning!
    Drag racers prayer:
    As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my ride." -Amen

  11. #11
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    Quote Originally Posted by RacerX View Post
    I was just thinking that I thought I saw that still advertised on Dennises site.
    I'd get yours balanced first. Most large truck shops do it or will tell who they use.
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  12. #12
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    We have CVPI length driveshafts. Most CVPI's use an aluminum shaft similar to the Marauder, but without a damper. Some use an MMC shaft with a higher critical speed than ours. The literature I have found says pink/green stripes or pink/green/blue are MMC. Pink/green/green are stock Marauder plain aluminum and pink/blue/orange are CVPI plain aluminum (without damper). Some of the newer CVPI's have shafts that are different from these color codes but no one has ever chimed in about newer CVPI's having MMC shafts so I couldn't tell you about the new stuff.

    All based on what I have read, take it for what its worth.
    Steve H., Charles County, MD www.carfap.com
    1994 Lincoln Town Car. 98-02 front brakes, P71 steering and sway bars, Eaton swap build underway using TorkTech 4.6 2v intake kit.
    2011 Infiniti M37x
    2004 F250, v10 6 speed manual. ex-US Forest Service truck
    2000 BMW M5
    1976 Jeep DJ5 (postal)

  13. #13
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    Quote Originally Posted by ntd View Post
    just take yours to a driveshaft shop and have it balanced, if your allready having vibrations cheak your tailshaft bushing for damage

    You can balance a banana, but its still a banana

    Quote Originally Posted by FordNut View Post
    Good luck. Get a dynotech carbon fiber shaft. I would normally recommend a Dynotech MMC shaft but they're no longer available. If you pull it and get the measurements and specifications on the front & rear yokes you can get a MMC shaft custom-made from Mark Williams Enterprises.
    +1 I know someone with the carbon fiber shaft, good quaility stuff

    Quote Originally Posted by ddogg626 View Post
    How about Reinharts shaft on his page ??

    which is no longer made


    2016 Ford Mustang GT PP - Lund nGauge, BMR vertical links, MGW Shifter, BMR CB005

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  14. #14
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    [quote=offroadkarter;827585]You can balance a banana, but its still a banana

    good thing driveshafts aren't made out of banana's
    My garage
    http://www.mercurymarauder.net/forum...=view&id=10419

    04/30/11
    1/8 mile 7.7430 at 89.24
    1/4 mile 12.16 at 110.66(calculated)

  15. #15
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    Location
    Near Knoxville TN
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    If you're fixin' to take the car to Europe, you ought to fix it with the best possible solution before you go. Best easy solution is the CF shaft from Dynotech. Best but less easy is the Mark Williams MMC shaft.
    Thanks to Darrin @ BC Automotive:
    $1800 and it was worse than when he started!

    Brian (FordNut) FPG # 1458 of 7838
    03 MM 300A (Lotsa mods, 130k mi) was 303rwhp/318rwtq N/A
    then 476/410 D1SC ProCharged on stock block
    then 660/555 D1SC PC on 5.3 wet sleeved Teksid alum big bore stroker
    then 365/369 N/A on 5.3 wet sleeved Teksid alum big bore stroker
    Now 751/617 3.4L Whipple on 5.3 Boss5.0 iron big bore stroker

    03 MM 300B Silver (Mostly stock, originally wife's car, 370k mi) FPG # 7053 of 7838 or 49 of 417 SB
    03 MM 300B Silver, Stock, wife's next one, 136k mi FPG # 7134 of 7838 or 89 of 417 SB
    04 MM Silver, Stock, on standby 85k mi, FPG # 1212 of 3214 or 432 of 997 SB
    01 F150 longbed
    01 F150 shortbed
    00 F150 4x4 stepside
    01 F150 4x4 7700
    68 Stang FB (70 351C 4V, 4 wheel discs, project car)

    Mods listed here (some items not current): FordNut's Mods

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