The Stovebolt Site Forums The Shop Area Driveline 59-63 1/2 ton limited slip info

I'm looking for any info on a 59 to 63 limited slip unit for 1/2 ton trucks. I came across one with a 3.90 gear and can only find it in my parts book as a 60-63 option. 59 looks a little different. its type in the book is 10-910 for 60-63.
Any help is appreciated.

What do you want to know? Asking for "any info" is vague and time consuming.
https://www.stovebolt.com/ubbthreads/ubbthreads.php/topics/762193/1.html

I realize its vague but I would like any info. I've only heard about them and never come across one in my 45 years on these trucks. repair manual,where can I find parts, what ever you can tell me about this particular rear would be useful. approximate value in useable condition

Read Stovebolt link I added above. A real, era correct differential from 1959 is rare. The value of a hypothetical unit is not possible to determine and will depend on the actual year. Rare is not always valuable. In the case, the value is as usual: Condition? Ratio? Where is it? Who has it? How bad do you need it? How bad does the seller need it? Asking price. Sales history. Result: Free to $500. Can't imagine that it would not need rebuilt and if so, where are you going to get clutches and etc. for a 59? I rebuilt a genuine 1960 Dana 44 (open), the parts were listed as 60-up. Chevy and GMC were in a huge transition in differentials at that exact time. Books say one thing, actual truck have anothers. HO's, 44's, 45's, several "10 bolt" styles. The ring gears have ratio and date stamped on edge.

Thanks, So I now know its a late 59 early 60 or later Eaton H033 limited slip. Its definitely not a Dana or Spicer. It was in a 58 59 truck but could have been swapped out years ago from a 60 -63 truck. I realize its value is limited to what the guy that wants it is willing to pay. Now I just need to find a manual on it. I would expect it to be in a 60-66 manual


Thanks for the help. Eaton H033 limited slip has popped up a lot of info

Do you have a Chevy truck? Does it have this diff? Do you just have a diff? Did you find a diff for sale? What are you doing or wanting to do?
I would take a moment and consider upgrading, for a million reasons. The '63 to early '70 12 bolt is the same width as your Eaton HO32/33. Usually Limited slip in those days were for 4X4 and hauling. Now a days it's for that, but much more for acceleration.(Hot Rodding) Why would you need Posi in an old truck or why add it now? It IS going to be hard/impossible to find new parts and very expensive if you do. Car parts probably don't fit truck parts.

I have a 58-59 Chevy chassis I'm parting out and this rear was in it. I just wanted some details on it to check it out and make sure its good. Or where to get parts if it needs anything. My initial thought was it may be in the $400-$500 range because I see car units going for $800 to $1000.

I really detest the "RARE" term when used by people selling what we all know to be common items or not so rare items so I don't use it very often. My thinking was if I had only heard of and never seen one in 45 year of working on 47 to 59's it must be somewhat rare. But on the same point I'm sure someone has come across a dozen in his/her time.

Understood.