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Rebuild Of My 4speed Auto, With Video And Pics


Headsex

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  • Member For: 16y 10m 30d
It would seem that planterys are going to be the weak point.. Really need a aftermarket unit here

just wondering what are the mods to the valvebody and is there point changing to xr8 valvebody as I herd they are better.

cheers joel

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  • 10 months later...
  • ANGEL EYES
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  • Member For: 16y 5m 11d
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  • Location: SE Suburbs, Melbourne

It would seem that planterys are going to be the weak point.. Really need a aftermarket unit here

Any more updates danny? Also what list of modifications do you recommend to the transmission as per above?

beerchug.gif

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  • Member For: 17y 3m 20d
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Yea good thread mate, any more info though on what exactly is done? With the way of clutch packs I heard there's no such thing as an aftermarket kevlar option? My 1st gear has started slipping (stops pulling and just revs out after 60kmh) and I've been running 270rwkw for a year. Would an aftermarket high stall, say a dominator 3000 be too brutal on the trans, as I've heard torque is what kills these boxes too, and a high stall being a torque multiplier = bad in the long run?

:beerchug:

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  • Member For: 19y 4m 22d
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  • Location: Melb

Firstly, if you have a converter, you need a trans cooler.

In terms of mods, The boxes are usually standard rebuilds, using standard replacement frictions as per the factory recommendations. The Band is a hi energy band.

Plantry's are treated, but this still doesn't stop them from failing. I've broken 3 sets to date.

Valve body modifications basically include increasing flow to the Bar and Car circuits. There's a bit of work there. And also couple of springs are swapped out for heavier set. As for exact details.. Trying to describe that would be.. Impossible =) Plus.. This is stuff auto builders like keeping secret.

Oh and also. Some auto shops make a aftermarket Servo for the Band Apply (2nd and 4th gear). I've also got this in my auto.

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