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Thread: Prothane transmission mount for 3.4L V6

  1. #1
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    Default Prothane transmission mount for 3.4L V6

    Let me save you the time. Despite the Prothane site claiming that part number 7-1604 fits the 3.4L V6, they are wrong. To be specific I have the M49 manual transmission. It does not align with the crossmember properly.
    Here is the Prothane site with INCORRECT information:
    http://v6f-body.com/showthread.php?t=5632

    Here's my original post finding out the hard way:
    http://prothane.com/polyurethane-mot...ission-mounts/

    Here's how to install a new stock mount:
    http://www.camarozone.com/forum/f20/...-02-v6-110996/

    Apparently, the crossmember is the wrong shape. A crossmember can be taken from some of the v8's it seems.

  2. #2
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    Thanks for the info. This probably goes for 3.8 m49s as well.

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    Or you can just notch the hole in your existing cross member.. I did it and it worked fine.

    Sent from my ADR6300 using Tapatalk
    93 Firebird M5 [RIP]
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    Quote Originally Posted by SlasherVRGR View Post
    Or you can just notch the hole in your existing cross member.. I did it and it worked fine.
    Sent from my ADR6300 using Tapatalk
    So you basically just drilled a wider hole in the cross member to accommodate for the forward offset of the lower bolt?

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    Its a longer hole, but yes. I should have taken pics :x

    Sent from my ADR6300 using Tapatalk
    93 Firebird M5 [RIP]
    98 BPM Camaro M5 [RIP]
    98 NBM Camaro Z28 A4 [LS1]

    Mods: slp lid, borla adjustable catback, transgo kit, 3.73s, spohn tubular A arms..

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    Quote Originally Posted by SlasherVRGR View Post
    Its a longer hole, but yes. I should have taken pics :x

    Sent from my ADR6300 using Tapatalk
    I did the same thing all you have to do is get a metal bit and drill off some of the metal until it fits. Mine has some vibration around 50 and 70 but nothing serious and I don't eat through these like I did the stock tranny mou nts

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    I found no odd vibrations on mine.. I feel lucky :P

    Sent from my ADR6300 using Tapatalk
    93 Firebird M5 [RIP]
    98 BPM Camaro M5 [RIP]
    98 NBM Camaro Z28 A4 [LS1]

    Mods: slp lid, borla adjustable catback, transgo kit, 3.73s, spohn tubular A arms..

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    If I get a junkyard crossmember, which cars do I look for? Is it only automatoc LT1s or will the manual trans be the same crossmember?

  9. #9
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    you nee one form an a4 lt1

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