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TQ converter bolt help....

This is a discussion on TQ converter bolt help.... within the Automatic Transmission forums, part of the Drivetrain category; So I got under my car to remove the tq converter bolts via the flywheel and I was under the ...

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    Moderator 98TransAmWs-6's Avatar
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    TQ converter bolt help....

    So I got under my car to remove the tq converter bolts via the flywheel and I was under the impression that they were hex style bolts. However these are allen key bolts and I was wondering if anyone has come across this and what their size is.
    1998 Trans Am WS6 - Phantom
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    Moderator 98TransAmWs-6's Avatar
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    Anyone?

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    Veteran 0rion's Avatar
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    been a long time since I've done converter bolts.....pretty sure it's an 8mm metric allen wrench. I know the 98's got the allen bolts and the others got regular bolts.

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    Spaz is My Mentor SMWS6TA's Avatar
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    why would they use allen head bolts?

    my other question is, can you swap them out?

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    Quote Originally Posted by 0rion View Post
    been a long time since I've done converter bolts.....pretty sure it's an 8mm metric allen wrench. I know the 98's got the allen bolts and the others got regular bolts.
    Alright thanks!

    Quote Originally Posted by SMWS6TA View Post
    why would they use allen head bolts?

    my other question is, can you swap them out?
    Probably the same reason on my 85 corvette the fender was held on by an extremely odd torx bolt size. I am pretty sure you can and that ARP sells replacement hex headed bolts.
    Last edited by 98TransAmWs-6; 08-23-2013 at 12:11 PM.

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    Veteran 0rion's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    why would they use allen head bolts?

    my other question is, can you swap them out?
    not sure...GM has had a love affair with allen bolts and torx bolts for years. I've done countless brake jobs where the caliper was mounted with allen bolts. What a shitty bolt to use in that application too. The last one I did was on my neighbors 1500 series truck. Of course the allen rounds out so I had to break out the welder and tack beads around the bolt head until I could get a pipe wrench with a piece of pipe on it to break it loose. GM got called many many unthinkable words that afternoon.

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    Had regular bolts in our '02 -- wasn't aware of the '98s being different. I used ARP's when I installed the new trans and torque converter. Cheap insurance.

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    Senior Member cpop98ws6's Avatar
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    I'm pretty sure my 98 had regular bolts, but i might be wrong that was 6 years ago I took them out. ARP bolts in mine to.

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    Quote Originally Posted by cpop98ws6 View Post
    I'm pretty sure my 98 had regular bolts, but i might be wrong that was 6 years ago I took them out. ARP bolts in mine to.
    Well it had its Transmission replaced with a new GM unit in 2008, so maybe the newer one used allen key bolts?

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    Update....the 8mm allen key socket fits. I just need to get the long enough extention since my 10" isn't long enough.

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