ShortyNavros
Member
Okay so I have been doing some research into this and a couple of people have done this already, but there are different ways to go about it, the easiest way there I can think to do it seems logical but I am not sure if anyone has done it.
Options:
1. Get a Dana 44 diff and put it under the front using either the calmini system or rugged rocks/others. It sounds like it is hard to get a dana 44 axle in Aus and sourcing spare would be horrible. Also people seem to destroy the transfers after the swap. If there a more common diff which has the correct width and passenger side drop which could be used (I know mot of the toyota/nissan live axles use a drivers side drop).
2. Get a GQ chassis and swap the D22 cab onto it, lots of messing around with body mounts also need to use a diff/modified sump to allow for the drivers side drop dif. This is a good option for spare parts but still a lot of hassle.
3. Gte a GQ/GU patrol diff and flip it (this looks like a lot of hard work), then set it up like the Dana 44 diff with a kit like calmini etc or get it fabbed locally.
3. This seems like the best option. Get the rear half of a rd28 patrol gear box and transfer which should bolt straight onto the ZD30 gearbox. This makes the front prop shaft a drivers side drop style so patrol diffs can be used, also gets rid of the D22 transfer which seems to struggle with the live axle diffs (have read people who have a SAS that the D22 transfer doesnt last too long). Could also keep the standard GQ suspension set up which will make it easier to engineer. One problem with this is that the room under the cab is on the passenger side for the transfer, if the transfer switches side I am not sure how much room there would be there (a body lift would help this I think?). You would also need a new sump so that the prop shaft could travel to the drivers side not passenger side, so the obvious one to use is the ZD30 patrol sump (does it bolt onto the D22 ZD30, I assumed it would?), the only question is given how big a patrol is it may drop down too low. Also I am not sure if the front crossmembers would need to be modified with the new transfer case + front prop shaft. Best thing is patrol diffs come in the right ratios (3.9,4.375,4.625) so you can get the right ratio to match your rear diff. Could you keep the radius arms and panhard rod setup?( I know this limits flex compared to a heim joint 3 link setups but keeping the original suspension would be more desirable for an engineer signing off on it). Not sure if the radius arms would line up where you need them to mount them to the chassis (if you keep them in the standard mounts on the GQ diff, also caster may be an issue which needs correcting), the panhard shouldnt be a problem to mount to the chassis rails near the shock/spring/coilover mounts. And for steering apparently the GQ could be adapted to the D22 also making that easy.
My question is has anyone done this, my main concern would move the new transfer and if there is enough room to fit it under the cab/ inside the drivers side chassis rail?
Shorty
Options:
1. Get a Dana 44 diff and put it under the front using either the calmini system or rugged rocks/others. It sounds like it is hard to get a dana 44 axle in Aus and sourcing spare would be horrible. Also people seem to destroy the transfers after the swap. If there a more common diff which has the correct width and passenger side drop which could be used (I know mot of the toyota/nissan live axles use a drivers side drop).
2. Get a GQ chassis and swap the D22 cab onto it, lots of messing around with body mounts also need to use a diff/modified sump to allow for the drivers side drop dif. This is a good option for spare parts but still a lot of hassle.
3. Gte a GQ/GU patrol diff and flip it (this looks like a lot of hard work), then set it up like the Dana 44 diff with a kit like calmini etc or get it fabbed locally.
3. This seems like the best option. Get the rear half of a rd28 patrol gear box and transfer which should bolt straight onto the ZD30 gearbox. This makes the front prop shaft a drivers side drop style so patrol diffs can be used, also gets rid of the D22 transfer which seems to struggle with the live axle diffs (have read people who have a SAS that the D22 transfer doesnt last too long). Could also keep the standard GQ suspension set up which will make it easier to engineer. One problem with this is that the room under the cab is on the passenger side for the transfer, if the transfer switches side I am not sure how much room there would be there (a body lift would help this I think?). You would also need a new sump so that the prop shaft could travel to the drivers side not passenger side, so the obvious one to use is the ZD30 patrol sump (does it bolt onto the D22 ZD30, I assumed it would?), the only question is given how big a patrol is it may drop down too low. Also I am not sure if the front crossmembers would need to be modified with the new transfer case + front prop shaft. Best thing is patrol diffs come in the right ratios (3.9,4.375,4.625) so you can get the right ratio to match your rear diff. Could you keep the radius arms and panhard rod setup?( I know this limits flex compared to a heim joint 3 link setups but keeping the original suspension would be more desirable for an engineer signing off on it). Not sure if the radius arms would line up where you need them to mount them to the chassis (if you keep them in the standard mounts on the GQ diff, also caster may be an issue which needs correcting), the panhard shouldnt be a problem to mount to the chassis rails near the shock/spring/coilover mounts. And for steering apparently the GQ could be adapted to the D22 also making that easy.
My question is has anyone done this, my main concern would move the new transfer and if there is enough room to fit it under the cab/ inside the drivers side chassis rail?
Shorty
