Seatbelt

[Gregsenne]

How does the seatbelt lock up? Is it based on the amount of force the belt is pulled from the reel, like every other chevy vehicle I can think of?

Because mine, I can yank and yank as forcefully as I want, but I've only got it to lock up a few times. And last time I went to the junk yard, I pulled on random seatbelts from these year trucks and suburbans, and couldnt get a one of them to lock up.

I can take any other chevy car or truck I have and yank the belt hard and it locks. But I can't get a single one of these old trucks to lock but maybe a few random times.