i don't know what UNF is. sorry

 

UNF == Unified Fine Thread <== google "UNF thread"

Autozone as well as many other parts stores have the proper u-bolt style (<=click) straps for the front as well as the straps and bolts for the rear.

I snapped another picture to show the rear joint. I thought it used the same style u-bolt as the front, however I was wrong. On my 74, it uses a cast cap that bolts on. A u-bolt style strap would likely work in this location as well though. But that is an NP203 fulltime transfer case on my 74. It may be different for the front of an NP205.

 

got the driveshaft installed and it turns out the gear ratios are different front and rear i think, its clunking and binding in 4wd

 

That would be why they removed the driveshaft then.

You can determine the gear ratios by marking the pinion yoke at four locations, 90 degrees apart and the snout on the differential where the pinion enters at one location lined up with one of the four marks on the yoke. Then mark a tire at a good location that lines up with a reference. If you can rotate both tires at the same time and speed, rotate them both one rotation and count how many lines pass the mark on the front of the diff housing. If only one tire wants to spin, rotate it two full rotations keeping the other tire stationary. This will account for the open differential.

What you count out will translate into your gear ratio. If you count 16 plus a little more, it will be ~4.10/4.11 gears. If you count almost 15, then it will be 3.73 gears. If almost 14, 3.42. And finally just a bit more than 12, 3.08. That should cover the common gear ratios.

Do this on both the front and rear axle. For the front axle, you have to make sure that the front hubs are engaged.