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73-87chevytrucks.com
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73-87 Chevy _ GMC Trucks
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4 Wheel Drives
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Transfer Cases and Front Drivelines
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203 swap for a 205
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Topic: 203 swap for a 205 (Read 4891 times)
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
203 swap for a 205
«
on:
February 20, 2010, 01:58:59 AM »
OK thinking about swapping out my 203 for the 205 the 203 has ubolt style flange at the case while the 205 has the circle and since i broke 2 and the bolts are giving me heck i want to swap them out my question is both are comming off a 465 will anything need to bee done to the 203's rear drive shaft to make it fit for the 205? the 205 is out of a blazer so using that shaft is out of the question. cant remember what the 205 had but mine (203)is a slip shaft and the 205 might be a slip yoke could that cause a problem? or would it just be easer to swap the whole tranys out
«
Last Edit: February 20, 2010, 02:00:42 AM by Irish_Alley
»
Logged
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
joesgarage71
Wrench
Senior Member
Posts: 1157
Re: 203 swap for a 205
«
Reply #1 on:
February 20, 2010, 09:54:49 PM »
should have a flange bolted to the output of the 205 and theres a deal that bolts to the flange for your driveshaft. I think you can get them at ORD, or other 4x4 parts houses.
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78' K-20 355/SM465/twin stick 205 6" on 36's
14 bolt FF/big bearing Dana 44 4.56 gears
92' GMC C-1500 454/4L80E/14 bolt
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: 203 swap for a 205
«
Reply #2 on:
February 21, 2010, 12:25:27 AM »
this is what i found out in my journey today. the 10 spline flange is pre 77 and the 32-30 is post 77, so i have a pre 77 and every transfercase i had laying around and my buddy also was post 77 with the round flange you can take a 208 and swap the flange with a 205 and 203 as long as its the same spline count, but from what i understand the ubolt type flange that i have is also a pre 77 and once they swapped over to the post 77 style they did away with the u bolt type.
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: 203 swap for a 205
«
Reply #3 on:
February 21, 2010, 12:34:19 AM »
also check this out
http://www.4wheeloffroad.com/howto/47538/photo_15.html
it looks like they have 10 spline square and 10 spline u bolt type what give am i missing something
Logged
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: 203 swap for a 205
«
Reply #4 on:
February 21, 2010, 01:08:28 AM »
http://www.driveshaftsuperstore.com/Drive_shaft_custom_flanges.htm
think I'm getting closer
Logged
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
Irish_Alley
Tim
Global Moderator
Senior Member
Posts: 13319
Family is not an important thing. It's everything.
Re: 203 swap for a 205
«
Reply #5 on:
February 22, 2010, 04:38:49 AM »
well still no flange found but i think i found the next best thing
http://www.customdriveshafts.biz/FlangedCV.html
now that I'm looking at it more i don't know if its what i need I'm sending them an email to see
«
Last Edit: February 22, 2010, 04:47:25 AM by Irish_Alley
»
Logged
If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley
When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes
fitz
Senior Member
Posts: 2084
Re: 203 swap for a 205
«
Reply #6 on:
February 22, 2010, 07:10:57 PM »
Spicer still makes the flanges and yokes, I had to get new yokes when I swapped in a 205. Most driveshaft shops can get them for you.
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joesgarage71
Wrench
Senior Member
Posts: 1157
Re: 203 swap for a 205
«
Reply #7 on:
March 03, 2010, 06:24:10 AM »
there ya go part numbers and everything.
Logged
78' K-20 355/SM465/twin stick 205 6" on 36's
14 bolt FF/big bearing Dana 44 4.56 gears
92' GMC C-1500 454/4L80E/14 bolt
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73-87chevytrucks.com
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73-87 Chevy _ GMC Trucks
»
4 Wheel Drives
»
Transfer Cases and Front Drivelines
»
203 swap for a 205