This doesn't look like it will be a problem anymore - I have reviewed the way I am sorting this out and will not need to bore out the spindle.
Running stronger diffs will not be an issue, when complete, I should have plenty of diff strength, however, there will be a reasonable amount of load on the bearings and housings. I will need to strengthen them I suspect, along with the transition from axle tube to swivel.
Many aspects of the build are still up in the air @ the moment. Once, they are sorted out, I will probably start a thread here.
Current "fixed" components are:
1986 LWB chassis, un bobbed.
RUF, rear 3/4, rear sierra OME packs.
welded rear, Lock right front. 3.7 WT centres
1.6 bottom end into trimatc into vit t/case into series 1 'hopper.
15X7 beadlocked rims with urethaned inner beads and Q78 swampers.
Other stuff being worked on will include Full foating axle rear and front hubs all 'round so four wheel discs too.
I do not consider the G axles to be that much of an advantage. They have a unique front wheelbearing design that is a PITA to rebuild, the rear is semi floating, and the front runs back to front. (It is literally a rear diff upside down) ratio is 4.88, so nothing great there, and the lockers, being hydraulic, require a fair bit of work to set up.
I am trying to build a car with as many Zuk parts as possible, and the requirement for an offset rear diff would limit me to MQ or LC diffs, that have a diameter that eats up plenty of clearance. To my mind, tghere is little point running a 35" tyre on a Nissan diff if you can run a 34" tyre on a sierra diff without too much breakage.
As to running a 35.5" tyre spua on narrow track diffs with 3.7 centres... well I'll just have to wait and see if what I am planning works... then you'll all be the first to know.
