first time 4l80 build a disaster... or not?

First i want to give a big thanks to everyone who has helped me with my build and responded to my my threads . Finished up my 4l80 build last night red eagle clutches and steel, transgo hd2 and 3200 stall. Got it all installed this afternoon and this thing is a beast! I put a few miles on it without a problem. But....... on the way home i was in drive going down the highway and i stomped it and it just hit the rev limiter. Now i have no reverse or park or drive. I can manually pull it to first and shift it to second, third, and even od. But once in od it will not downshift to third , it just acts like it jumped to neutral. Ive been reading in my atsg book and i think the actuator parking lock may have came loose some how. Can some of you trans gurus please help me.

Forgot to mention we hooked the computer to it and could not shift it with hp tuners.

check the fluid? sounds low on fluid if its hitting the rev limiter

Think my problem is in the rear servo, and the park problem is the linkage inside the pan. Will know tomorrow.

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