Quote:
Originally Posted by bcj67chevy
...locking rear end...Trying to get a pic of what the locking rear end from 1970 would look like. Spid label says locking rear end for a option, but it just doesn't look right.
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The stock rear for a 70 Blazer is a Chevrolet 3500 AKA 12 bolt. There is no way to identify a posi rear end by a glance as it is the same housing. It may have a tag on a diff. cover bolt. The rear end should have a build number that includes a ratio/application code. If you can find this we can try to look it up. Often it is just easier to pull the cover and inspect the diff.. Most never get the fluid changed often enough.