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NP205 front CV bolt size?

Discussion in 'The Garage' started by Russell, Mar 27, 2006.

  1. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

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    Hey guys!

    Does anyone happen to know what size / length of bolt I need to be using on the CV to t-case connection?

    If I can get it bolted up, and get my truck running this week, it can pull itself outta the shop like a honda does every day -- FWD! :haha:

    At least I'm not like most of the posers who have no front shaft! I have no rear shaft! :D
     
  2. pvfjr

    pvfjr 1/2 ton status

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    I know they are 5/16-24tpi bolts. I *think* they are 1-1/8 long...
     
  3. 85mudblazin

    85mudblazin 1/2 ton status

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    Try 7/16;)
     
  4. pvfjr

    pvfjr 1/2 ton status

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    Umm, yeah...try 5/16. Normally when you buy bolts, you go by the size of the shank, not the size of the head. :screwy: Ever been to a hardware store?
     
  5. JpEater

    JpEater 1/2 ton status

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    Mine are 7/16". I think that they are 1 1/4 long. 1 1/8 is an odd size around here.
     
  6. Leadfoot

    Leadfoot 1/2 ton status Premium Member

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    Going from memory I believe this is correct with a 5/8" head.


    The 5/16" reference I think is for the bolts that hold the straps on a yoke for a non CV, non u-bolt connection.
     
  7. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

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    Cool, thanks guys!

    Now I can run to the hardware store and grab a couple :)
     
  8. pvfjr

    pvfjr 1/2 ton status

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    Can I see a pic of what you guys are talking about? I've dealt with several CV's on my 205. They all have taken 5/16" bolts. The ones I'm talking about are the ones that slip in from the backside of the front output yoke and thread into the CV. The ones with straps and u-bolts have all been that size as well. I can't even imagine a 7/16 bolt. 7/16 is very large for something like that, I just can't see it. What years are you all dealing with?
     
  9. 85mudblazin

    85mudblazin 1/2 ton status

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    Some use the flange style that uses the same yoke/cv as a 208. These use 7/16" bolts to hold it together.
     
  10. pvfjr

    pvfjr 1/2 ton status

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    Oh, you guys are talking about flange? :doah: I can't believe no one mentioned that. That changes everything.:crazy:
     
  11. 85mudblazin

    85mudblazin 1/2 ton status

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    Maybe you should think about it more before you try and make me look like a dumbass:rolleyes:
     
  12. pvfjr

    pvfjr 1/2 ton status

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    Right back at you. It never said flange, it was just as likely that I was right. Just a bad miscommunication. I was on pirate right before too, so sorry if I was in a pirate state of mind. :D :o
     
  13. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

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    Well, I got some 1.25" 7/16 20TPI 8 grade bolts + lock washers, and while the hole is a 7/16ths shank, the thread is way too fine on the bolts I got.

    Anyone willing to measure the thread for me? My thread gauges are too thick to fit in there, and I don't feel like spending hours trying different bolts till I find the right size, lol

    No worries about them being the wrong thread, whole cost of all 4 bolts + the lock washers was a painful 1.99 :P
     
  14. pvfjr

    pvfjr 1/2 ton status

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    I thought the flange style used course thread 7/16 bolts. Should be 14 tpi I believe.
     
  15. 85mudblazin

    85mudblazin 1/2 ton status

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    Yep what ever standard curse thread bolts are.
     
  16. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

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    Well, now ya tell me :D

    I suppose, I'll just have to take another trip into town tommorow to get the right bolts :)

    Personally don't feel too good about using old rusty bolts that are under direct stress from the engine. At least with a u-bolt strap, most of the force goes into the sides of the yolk :)
     

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