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will 6cyl aussie 4 spd go on a 308?

jimmyd17

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just a quick question... does anyone know if the aussie 4 speeds are interchangable between the 253/308's and the VB-VK 6 cylinders? im guessing its a different bell housing but could i get an aussie 4 speed from a 6cyl and put it behind a 308. my 308 already has an aussie 4 speed in it but its a bit broken. i guess my other question would be... if they do fit, is there any difference in strengths between the gearboxes?

thanks.

~ James
 

figjamidhVK8t4

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m20 for 6's m21 for 8s
 

SL/ENUT

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Also totaly different input shafts too.
 

jimmyd17

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so an m20 wont fit behind a 308? whats the difference between the boxes?
 

craigvk

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I thought aussie 4 speeds weren't strong enough like the Celeca boxes as well to go behind a 5 litre monster?
 

Goon

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I'm sure i've seen a 4spd in a VH 8 once.. Though that could of been a 5spd.
 

SL/ENUT

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My SL/E has a M21 from factory. Never had a rebuild and still going stong. I also have a mate that once raced a LH torry with 400HP at the flywheel. The M21 never ever failed either.
 

craigvk

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My mate has a aussie 4 speed. Not sure if it's a M20 or 21, but I will ask him. How much should you expect to pay for a M21 box in good order?
 

SL/ENUT

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Well i don't about over the Bass Strait prices but down here in tassie anything between $350-500 for M21, cheaper for M20. The M21 are getting harder to come by though
 
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