Hi mate. Depends if the 4 speed you have is a short or long box. If the long, than any bluebird that runs an L20 will work. The rear extension is the bit that can be a pita. Due to the length of the drive shaft mating up to it. The extension lengths are 9 and 11 inches from the sandwich plate iirc.
I have a 720 kingcab gearbox at home that needs a new input bearing as its noisy. I swapped it out for a bluey one as i was short on time prior to taking the old girl on a big interstate holiday. It has the long extension on it.
Lastly, you dont have the 4 on the tree setup do you?
So if you're interested, PM me and we can sort something out if you like. I can help with freight also.
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