73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => 4 Wheel Drives => Topic started by: snibook7537 on April 13, 2011, 11:16:57 PM
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Hello,
I just had a quick question about the interchangeability of a 205 from a 79 K20 to an 86 K10 with a sm465. The 86 has the 208 in it now and the 32 spline output. I am wondering if the 205 from the 79 would be a direct blot up? I think it is a 205 because it has the straight shift 4lo N 2wd 4h, would have thought it had a 203 but i dunno. Anyway I have read about an 8 or 6 bolt pattern depending on the year would that be the adapter from the trans to the T case? Also would the length of the shaft be different? So basically I am asking can I use the 205 from the 79 k20 in my 86, or would I have to buy an adapter or is it basically imposable?
Thanks Vince
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If you can find a adapter from a 465 to a 205 . you might be able to do it that way
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okay thanks
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Even if it has the 8 bolt "race track" pattern, the 205 that came with the TH400 will not work. THe 205s that came with the TH400 had a larger input bearing, and will only work behind a TH400 mounting adapter.
If you are looking to put a 205 behind an SM465 you need a 205 housing that came from behind either an SM465, or the TH350. These have the smaller input bearing, and will work assuming the correct input shaft is used.
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The 205 on the sm465 is 8 bolt pattern, but also is 10 spline. The th400 is a 32 spline. So like engineer was saying it won’t work unless you get a new shaft idk if they even make one. Now post 86 sm465 can have the 32 spline but in order to find a 205 that would just bolt up you need a 205 off a 400
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I do have an 86 with a 32 spline and I can easily find the adapter but would the actual transfer case from the 400 work with a SM 465 adapter? I also am wondering now would a 700R4 with a 205 work with the sm465 adapter? The thing is I don't have a 205 now I have a cracked in half 208 but if I could pick up the transfer case from a 700R4 with a 205 would they work or does the 700 have a different spline count. I know about the 400 having 32 splines as does my sm465 but does the 700 have 32 splines or something different(thought it had 27)? I can get a rebuild 700R4 with a Cast Iron transfer case (assuming 205 gotta check it out) for $150. So just trying to find a 205 to mate up to a SM 465 with a 32 spline output, and can't find any in the yard, so looking for an alternative.
So right now I have an 86 SM465 mated to a 208 with a cracked in half 208
I can get a 700R4 with a 205 will it work with an SM 465 adapter?
I can also get a 205 from a Turbo400 with a 32 spline output, will it work with the sm465 adapter?
Sorry for all the questions but just still a little unsure.
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700 should be 32 spline. I didn’t know they matted a 700 and 205, doesn’t mean it never happened but i didn’t know. Don’t think any trans adapter will just work with another trans. but again that what i know. But that 205 should work fine.
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thanks Irish Really appreciate the help.
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700r is 27 spline 400 is 32 spline These are the outputs .the transfer case has to be the same spline. If the 465 you have is 32 spline and the 205 off of the t400 is 32 spline you need a adapter to put them together
A th350 is 27 spline when a 205 was on one of these it had a spud shaft that mated them together
http://offroaddesign.com/catalog/465spacer.htm
http://www.offroaddesign.com/catalog/Transfer%20Case%20ID%20Guide.htm
check there site out it has alot of useful info
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thanks for that correction i did mean 700s are 27, the main part is that i dont think its a 205 if its on a 700
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check this out
http://www.pirate4x4.com/forum/showthread.php?t=218124&highlight=np208+np205
on the last post that is stephen from ORD he knows all that stuff
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thanks for that correction i did mean 700s are 27, the main part is that i dont think its a 205 if its on a 700
You can put a 205 on a 700. you will have to use a spacer or buy a shorter output shaft
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so you can make it work it just never came like that, right?
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so you can make it work it just never came like that, right?
Yes sir right