Alright guys, I've got a '71 K5 and I seem to have a problem. A few weeks ago, I dropped the original 6-lug D44 front and 12 bolt rear diffs out and swapped in the rear a 14BFF, and ? in the front, 3.73 and both open The guy who sold me the axle pair, claimed they were from a '77 Chevy 3/4T 4x4, but wasn't absolutely sure as he didn't pull them himself. I have been told, by several on the CK5 forums and elsewhere that the 3/4T axle is a bolt in affair from 67 on up to 87/91 for the first gen K5/K10's, but here's my problem: I just got the axles, no spring plates or U-bolts included I went to reuse the old spring plates, only to find that both outer U-bolts as well as the inner DS U-bolt were not wide enough to accomodate the axle tube, and the PS inner U-bolt (the one that actually goes around part of the chunk) was about an inch too short, but the correct girth. Now, I've got one new U-bolt of the correct girth and length, that goes around the thickest part of the axle (inner PS side). I ethnically engineered a way to keep the axle in place (hogged out the old U-bolts with a torch to the correct girth) just so I could roll it in and out of shop I work in so I'm not working in a snowbank (or mud puddle, depends on the day). If I get the remaining 3 U-bolts of the correct length and girth, they won't fit the original K5 spring plate as they will be too wide to go in the bolt holes. I was told that the 3/4 and 1/2 ton spring plates are the same, but the axle tube is definitely larger in the 8-lug axle that is under my truck currently. Now, I *think* that the axle under my truck is an 8-lug D44, as the steering arm off the original rear fit right on when I swapped over the steering setup. But, I was told by the junkyard that the half and 3/4 plates are the same - SO my question really is, which spring plate do I need to buy? Will a D60 spring plate (from a 73-87 1-ton) fit the larger U-bolts for the axle tubes of my current front diff, or be too big? are 3/4T and 1/2T spring plates actually the same? are 3/4T and 1 ton spring plates actually the same? are all chevy D44 axle tubes the same OD? Do all D60's steer from the 4-bolt pinion, or did any steer from a 3-stud steering arm mount?