308 Trimatic Or Turbo Pattern?  

hqlover1995
  • hqlover1995
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  • Member No.: 157,341
  • Joined: 26-January 09
  • Posts: 119
Post #1 post 22nd May 2011 - 03:08 AM
ok i think i am asking a stupid question but i am trying to source a 308 for my tonne and want a 4 or 3 spd floor shift, what i am guessing is a trimatic pattern can only take a colom shift, or an auto box, and a turbo pattern can house a m21 4spd or 3spd am i right???
E-Z
Post #2

My old 308 vh sle was manual and we used a turbo 350 to make it auto

minirobbie
Post #3

tri matic pattern can take either tri matic or 3 or 4 speed as far as i know , i have a turbo pattern bell housing for a m21 and a standard v8 m21 they are different

Monaro454
Post #4

yep, M20-21 for holdens are made to mate up to a tri-pattern 308. a chev pattern 308 will bolt up to T350 and T400 transmissions and I dunno about manual boxes, chev powered holdens came out with Muncie or saganaw 4 speeds, but I am unsure about flywheels etc, and if they fit up same between chev and holden motors.

if you have a tri-pattern motor, you will be able to bolt a holden 4 speed straight to it and keep the same tailshaft, crossmember, speedo cable etc....

eh-buddy
Post #5

here's how it goes if you have a trimatic pattern motor a m20 or 21 will bolt up as long as its a v8 box and the 6 cylinder is different in the input shaft also if you a turbo bolt pattern a muncie or super t10 may bolt up or anything that was once behind a chev block you can put a ford top loader or single rail 4 speed behind with a bell housing change.

basicaly all turbo blocks were auto's ie wb statesman and early commodores im not sure on vn onwards style off blocks though.just remember if you are going to change it to manual make sure you fit a spigot bush in the crank.

1 thing to watch if you are going to use a hydraulic clutch set up and you are running extractors keep and eye on how close the pipe's are to the slave cylinder because it can boil the fluid some times

nightcrawler
Post #6

Yes a trimatic pattern block will except M15 , M20 , M21 , M22 manual gearbox's and the trimatic .
Chev pattern suit T350 , T400 , T700 auto's and T5 , T10 , Munchie and any other box that came out behind a chev motor . later model 304's are all chev pattern . and as mentioned many others can be fitted with a bellhousing swap ie celica , supra , toploader , single rail . As the owner of a 308 Tonner I can tell you now the T5 5 speed is a good thing .

warney
Post #7

i have a m21 full conversion ( pedals clutch master cyl etc) $400

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