I have a Dana 70 I picked up at a junkyard out of GMC Van Dura 3500, any one have any experience with these axles? It is 65-66" WMS to WMS. Is it worth narrowing and keeping it to go under Blazer/Jimmy? Or is it best to sell it and aim for a full float 14 bolt? I have found a shop that will narrow it, but it has huge drums on it. Thanks for any info.