203 to208 - Off-Road Forums & Discussion Groups
GM Standard IFS Trucks & SUV's All discussion of full sized IFS Trucks, SUV's to include Suburban

 
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post #1 of (permalink) Old 08-24-2001, 05:59 PM
**DONOTDELETE**
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203 to208

I'm swaping out an old np 203 with a newer 208 it bolts together but the splines dont meet, could anyone help on this project ? what plate do i need or is it that simple ?

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post #2 of (permalink) Old 08-24-2001, 06:23 PM
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Re: 203 to208

I think you'll need to swap an input shaft on the 208 or the output on your trans. What are you planning for the 203?

'83 Blue 'Burban K10, 4" with 35's, 6.5l oilburner, 700R4/208
post #3 of (permalink) Old 08-24-2001, 06:57 PM
u2slow
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Re: 203 to208

There's a couple of important variables at work here... What tranny do you have? What tranny is your NP208 from?

Different transmissions have different "stick-out" lengths. You will need either the correct length adapter, or a different output shaft.


'91 V3500 Crewcab, bobbed, SM465/NP205, D60/14FF, 4.10, 12k Warn, dual batts, 2" body, Blazer fuel tank.
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post #4 of (permalink) Old 08-24-2001, 10:40 PM
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Re: 203 to208

where can I get the correct adapter, with the proper lenght? I have a turbo 350 and the 208 it's from a 700r


post #5 of (permalink) Old 08-25-2001, 02:31 AM
u2slow
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Re: 203 to208

You need the TH350/NP208 adapter from 81-82 Chevy truck.


'91 V3500 Crewcab, bobbed, SM465/NP205, D60/14FF, 4.10, 12k Warn, dual batts, 2" body, Blazer fuel tank.
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