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Posted (edited)

Hey guys, I feel really dumb. I can't figure out how the hell I'd go about draining my gearbox in my hardtop. I've gone under the car and seen what looks like the sump but there is no plug?? I've looked it up in my manuals and they are pretty much useless. It doesn't give you a diagrame of where I have to drain it.

 

I could always just remove the tail-shaft and let it all leak out when I pull the engine out but I would make a mess on the driveway.

 

Any help would be appreciated.

 

thanks,

Jon.

Edited by JiP_01
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Posted

Yep I've come accross the same thing. Pretty much gotta undo the bolts at the front of the pan, get a really big oil catching device, and hope for the best!

 

undoing the tailshaft would take too long.

 

you'll probably will end up with some mess! But thats a holden gearbox for ya!

Posted
Thats SUPER GAY!! thanks for your help tho.

 

I'll give it a go next time i'm in the mood to try again.

 

undo 3 bolts in 1 back corner of the pan slowly loosen the next bolts 1/4 turn it will slowly start running out the corner, as the flow slows loosen some more , this is the cleanest way to drain. once it has drained remove pan an drain last, throw away oil pan and replace with one from a 1970-1979 Holden 6 as they have a drain plug.

Posted (edited)
FAQ updated. Hope you don't mind Darren, I copied and pasted what you said. :'(

 

From HG 1970 was the start of trimatic so Toranas, kingswoods, premiers, statesman should have drain plugs about 1979 was when the accountants worked out they could save the cost of a plug. All 6 cylinders and most 4.2 V8 ran trimatics.

 

I have rebuild 4 ,6 & 8,trimatics they have a few extra plates for the V8's that will be a future project a wild 7k with Tricked V8 trimatic.

Edited by KE30_KE35_KE55
Posted
Both my spare early trimatics don't have drainage holes.

yeah mines off a torana it was suggested when we had the box rebuilt last time i owned it sorry should have mentioned that

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