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cool, i was able to position the axle in the right place...but, i can't get the centering pin into the spring perch...and i won't be able to tonight...has anyone run their truck without the pin all the way through to the perch? think the u-bolts will be able to hold the springs in place on their own?
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I'm not sure I fully understand you, but it doesn't sound like a problem that should take all day? Either way, there could be dirt in the perch that's 20 years old and looks like it was cast that way. I usually use a drill to take it out but a screwdriver or an awl works as well. The short answer is no, the u-bolts won't hold the axle. If the centering pin isn't fully seated into the perch and you tighten down the u-bolts, the axle WILL rock back and forth upon acceleration and breaking busting the pin. This will take out your driveshaft, shocks, brake hoses, brake cables and lots of bodywork. If you went with a new leaf spring, there IS a possibility a 3/8" bolt was used rather than 5/16", or 1/4" even. In which case you'll have to drill the perch out to make the pin fit.