Phil. I hate to be a deal breaker, but. I have a 2004 Trac. I remove my stock MAF electronics. I used a device to measure the ID of the throut at that point. Then I used my digital caliper. Suprised to find the oem was 73MM. So I passed on that part.
You have an '05 so I suspect yours is the same. My thought is that the early gen1 must have been smaller. One other member Bill B. cheack his and he also measured 73mm oem. You have to measure the throat were the sensor is.