Thread: Fitting a ZF four speed to a 2 door

"as all the RRc with ZF autos had a Borg Warner viscous coupling transfer box"
No , wrong . only 89 onwards had the BorgWarner . 86 , 87 and 88's had the ZF mated to a LT230 .

Originally Posted by PhilipA

The hardest thing would be a kickdown cable, as all ZFs were injection AFAIR.

Nope, 4HP22's have a kickdown, 4HP22E doesn't.


Sent from my backyard TeePee using smoke signals.

OK guys forget everything I said.

Make any floor panel you want and fit anything you like!

Nope, 4HP22's have a kickdown, 4HP22E doesn't.


Sent from my backyard TeePee using smoke signals.
__________________

I think we all know that, but surely you are not suggesting he buy a controller ECU for 2K or whatever.

The point I was making is that no carburetted 3.5 had a ZF2HP22 or 4HP22. Maybe a 3 speed kickdown mechanism could be used but I do not know whether the stroke is the same, and if not some fabrication would be needed.
It's these details that are the major pain, trust me.

BTW he could use a 2HP22 and LT230 from say an 88RRC if he only has a 3.5. This will have speedo cable etc etc and if he found a wreck he could also get the tunnel. It would also have an injected kickdown mechanism, which he could maybe utilise as an intermediate mechanism.

Regards Philip A

If yoiu find a donor tunnel you only need cut out the top squared section (leave enough flange) and weld it into place on yours. Get some of that marine grade engine bay heat/noise/foiled foam for the hole. Did one too many years ago. Used the kickdown mech off the efi adapted to the carb mech for same stroke.

Originally Posted by PhilipA

BTW he could use a 2HP22 and LT230 from say an 88RRC if he only has a 3.5. This will have speedo cable etc etc and if he found a wreck he could also get the tunnel. It would also have an injected kickdown mechanism, which he could maybe utilise as an intermediate mechanism.

Regards Philip A

At which point someone should suggest using the EFI engine/manifold too, saves on linkages and makes it go better as well...

Then someone will suggest getting another RRC and driving it as well....

Then...

Ok i should probably clarify this a bit.

The idea is to put an older holden 308 in to a 2 door rangie, Fitting the ZF only because i already have one laying around.

It sound to me no matter what way i go its going to require some serious cutting, So the question i have now is, does anyone have any experience cutting a 4 door down (bobtail/trayback).

Please PM if you do, I have lots of questions.

Cheers
Craig

Adapting the bell pattern, spacing the flex plate out and making the crank hub to do it and fitting the 308 are more daunting prospects than cutting the thing up.

I thought it was a 2 door? But you're cutting down a 4 door?