Alrighty,
So in the last couple days I have ordered everything to convert the front axle to coil springs. After doing some research I determined 80-series parts would likely fit and work but the 70-series coil springs are a smaller diameter and so is the frame mount for the coil springs. I have confirmed the 70 to 80 series radius arms are the same. As a result I have decided to use almost all 70-series parts in the conversion to minimize any clearance issues I may encounter.
Everything is ordered and coming from Toyota, all the frame bracketry, panhard, coil springs, bump stops and more. I will be using some 2nd hand 80-series radius arms. I will scab off mounts from an 80-series housing and weld to my 70 housing.
That's the plan anyways and the conversion will likely start in the next few weeks. At the same time I will be tearing into the rest of the work to prepare this truck for the new owner.
Cheers