VintAGE-Vans

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BRINGING IT ALL TOGETHER.... A's, G's & E's


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DanTheVanMan
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    1966 Chevy Sportvan rear end

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    1966 Chevy Sportvan rear end Empty 1966 Chevy Sportvan rear end

    Post by Guest Thu Jun 30, 2011 4:09 pm

    I have a 1966 Chevy Sportvan with a shelled rear end. Everywhere I look to replace the differential gears shows a 12 bolt axle but mine is a 10. Does anyone know the specs on the 10 bolt that is most likely in my van so I can replace the gears? I will be driving it on the highway quite a bit and don't plan on pulling much ... any suggestions on gear ratio ?

    Thanks for your time
    Justin
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    Post by G-Man Thu Jun 30, 2011 4:16 pm

    Welcome to the site!!!! Sure someone here can help
    DanTheVanMan
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    Post by DanTheVanMan Thu Jun 30, 2011 6:31 pm

    Welcome Justin,
    Let me check my stash tomorrow.
    I have a spare rearend from a 66.

    Dan


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    Post by Digz Thu Jun 30, 2011 7:20 pm

    The 66 panel I have here has a 3.36 ratio in it, That seems to be quite common. but there are options if you are buying new ring and pinion ? Some are going to 3.08's. It somewhat depends on what you have for an engine also.
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    Post by Guest Thu Jun 30, 2011 7:56 pm

    Thanks for the warm welcome and response :c ). I had already purchased ring and pinion 3.08 for the twelve bolt with a master kit from motivegear then realized it was incorrect. I know it is the bigger of the straight sixes 230 ? I am new to the vintage scene as well as rebuilding and restoring so please forgive my ignorance on the subject matter.

    Thanks for your time
    Justin

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    Post by donivan65 Thu Jun 30, 2011 8:41 pm

    The vans came with 3 types of Differential ratios,,,,3:36, (10 bolt),,, 3:73 and 4:11 (12 bolt),, and in Positraction versions also,,,,,,,so a 3:36 has 11-37 stamped on the ring gear,,,,,,that is also the number of teeth on the ring and pinion,,,,,,


    1966 Chevy Sportvan rear end 336_ri11
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    Post by m1dadio Fri Jul 01, 2011 8:01 am

    Welcome to the site.
    One thing to know, There are three different carriers in these "8.2" ten bolt rear ends because the ring gears get thicker and the pinnion gears get larger in diameter as you go up the ratio scale . The carries are made differently for three different groups of gear ratios.
    Don't hold me to this, you need to research it but I think its
    2-series carrier for 2.73 gears and down - Numerically.
    3-series carrier for 3.08 -3.73 gears .
    4-series carrier for 4.11 and 4.56 gears.

    m1d







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    Post by Guest Sun Jul 03, 2011 10:28 pm

    My engine is a 250 and I will hopefully be picking up another 10 bolt rear end tomorrow ... Got the van started today runs like a champ besides an oil leak. Repacked the front wheel bearings and all new drum breaks all around minus the rear drums ... Long way to go but may be on the road this week.

    Thanks again for all the help
    Justin
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    Post by DanTheVanMan Mon Jul 04, 2011 5:37 am

    Checked the spare set I have... Their 4:11's.... Mad

    Dan


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    DanTheVanMan    
    1965 Chevy G10 Sportvan Custom
    1984 Jeep CJ-7 Laredo, Restored
    2004 Kawasaki KLR650
    1997 Jeep TJ Sport

    My Mini Gallery

    1966 Chevy Sportvan rear end Qr_cod10

    <-<-<- Cruising is not a "Point A to Point B" thing, but an "Everything in between thing!  <-<-<-
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    Post by panelmanrd Mon Jul 04, 2011 8:22 pm

    welcome to the site, where in Kansas are you?
    I`m blue springs mo.
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    Post by Guest Tue Jul 05, 2011 11:05 am

    I actually met my wife in Blue Springs :c ) Small World :c p We currently reside in Olathe. Finally got my eyes on the differential ... Turns out the Ring and Pinion look brand new ... teeth are excellent. The spider gears are what is needing replaced (miscomunication). Thanks Dan for taking a look I really appreciate it :c ). Headed back to the van today (currently residing at my sister's an hour away) to see if I can find a casting number on the axle and see where the gets me.
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    Post by Guest Mon Jul 11, 2011 9:34 pm

    Well after searching and searching I have figured out that I have a 10 bolt 8.2" 28 spline c clip type axle out of a camaro or something like .... My brothers (Shadow6010) 65 GMC Handy has a 12 bolt .. So much for thinking it came stock. The good that has come from this is that I now know more about old axles then I ever thought I would :c p.

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