Overdrive module?

[Transam388]

Not exactly sure what the thing is called or who makes it but I saw a module that bolts to the end of like a TH400 and is supposed to give each gear an overdrive. So your 3 speed tranny now becomes a 6 speed. Has anyone heard of these and if so are they any good? Of course the reason for going to a TH400 is for drag racing and having that bullet proof transmission. Yet it would still be nice not to be at 3K constantly while driving on the freeway. Anyway, just curious if anyone has any info on these things. Thanks!

[performabuilt]

Not exactly sure what the thing is called or who makes it but I saw a module that bolts to the end of like a TH400 and is supposed to give each gear an overdrive. So your 3 speed tranny now becomes a 6 speed. Has anyone heard of these and if so are they any good? Of course the reason for going to a TH400 is for drag racing and having that bullet proof transmission. Yet it would still be nice not to be at 3K constantly while driving on the freeway. Anyway, just curious if anyone has any info on these things. Thanks!

Its made by Gear Vendors its basically a two speed trans to bolt to the back of the trans you have, They are quite exspensive though

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[Transam388]

Thanks for that. Question being though are they worth a you know what?

[performabuilt]

They are from my understanding tough as nails