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arrrgh, need exact tranny output shaft length...

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by jekbrown, Feb 19, 2002.

  1. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    ok gang, I need to get this project rolling. As some of you may know, I am designing an spacer that will allow me to bolt my np 205s stock th350 adapter up to my 700R4. The $50k question is exactly how much longer is the 700R4 output shaft than the th350 output shaft? If anyone -knows- this info, I'd appreciate it if they could pass it along. I've heard guesses between 1-2"...but I need an accurate figure if this thing is going to work out right. As always, thanks in advance!!!!

    J


    See the on-going build up of my '85 Jimmy! <a target="_blank" href=http://community.webshots.com/user/jekbrown>http://community.webshots.com/user/jekbrown</a>
     
  2. Heavymetal

    Heavymetal 1/2 ton status Premium Member

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    Ok, I finally broke down and dug out my th350 and the 700r4 you sold me. These are the exact measurements:

    th350 7/8 of an inch past the housing.

    700r4 3 inches past the housing, give or take 1/16 of an inch because the output shaft moves that much.

    Hope this helps. If you do get one made you should have some sort of template for the design made so you can make more of them if you want. This could be a money maker for you, as I am sure other people would be interested in one. My idea of just cutting the shaft shorter won't work because the splines on the 700r4 don't go far enough into the housing. I contributed the measurements, so you can send me my free one when it's ready.[​IMG] LOL

    Good luck,
    Mike.

    <a target="_blank" href=http://coloradok5.com/gallery/search.php?searchstring=heavymetal>pics</a>
     
  3. BurbinOR

    BurbinOR 3/4 ton status

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  4. jekbrown

    jekbrown I am CK5 Premium Member GMOTM Winner Author

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    hvymetal: awesome deal man, thanks much. As I said, I need the length, at the same time I didn't wanna yank my tcase just to get it...I knew someone out there had both of them laying around and could help me. Thanks man! =)

    I already have the mating parts designed..I just needed the depth of the thing so I can have it made. I guess I'll make the spacer 2" thick so I'll have a little leeway to work with (1/8"). That shouldn't result in a significant amount of surface area at the splines being lost.

    As far as making $$$. Yeah, that would be nice. I'm not holding my breathe tho, if it worked out that way cool...if not, oh well. ;) I have a machinist buddy that is local that is gonna make the adapter for me. Assuming it works well for me, I think I might have a bunch of them made up for fellow CK5/pirate board peeps. Prolly sell them a little cheaper here. ;) Why advanced adapters doesnt make something like this I dunno...their idea of a solution is to sell a shorter output shaft. Not a good solution for peeps in my situation...I dont wanna pay $171 for the shaft PLUS all the labor it takes to change output shafts out. If I make these things for fellow ck5ers, they'd prolly be sub-$100 and wouldn't require any kind of tranny-shop labor..just bolt it on and go go go! For peeps who wanna go with the 205 instead of the 208 like me, this is just the thing. ;) OK, anyone ready to place a pre-order? =p

    J


    See the on-going build up of my '85 Jimmy! <a target="_blank" href=http://community.webshots.com/user/jekbrown>http://community.webshots.com/user/jekbrown</a>
     

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