An early Tundra is the same with minor differences like the location of the tab on the T junction for the brake lines. The housing will take your third member. The overall widths are the same (66.75). The tube diameters are the same. I believe the perch width is the same. The guys at the shop I use periodically (custom Toyota 4x types) state that they are, but I've never measured it myself. It would be worth hitting a junkyard with a tape measure.

4.27 sounds like it should be 4.30, but without counting it myself, it's hard to know whether the person erred up or down.

96 only had rear ABS, and it sucked. The rear ABS consists of a sensor ring on the axle. When I went to the full float setup, I just threw it away. No warning lights or system failures as a result.

Good luck. Have you thought of getting a Diamond from Brian Ellinger? He's great to work with and fabs a quality product.