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Old 12-01-2005, 08:40 PM   #1
skiscott00
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203 vs 208

I am thinking of changing my 203 out to a 208. I have a Turbo 400, what problems will I encounter?
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Old 12-03-2005, 03:04 AM   #2
skiscott00
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Re: 203 vs 208

Change that, I am thinking of a 205, what problems will I have?

Last edited by skiscott00; 12-03-2005 at 03:04 AM.
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Old 12-03-2005, 09:34 AM   #3
JIMs70GMC
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Re: 203 vs 208

no "problems" just need to find the right parts: adapter and 205 with a 32 spline input and be ready to have the driveshafts modified for length, especially the front because of the different front output between the 2.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.

1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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Old 12-04-2005, 05:54 PM   #4
454_72_4X4
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Re: 203 vs 208

Probably the hardest "problem" to solve is finding a 205 and the adapter for a TH400. Not impossible but difficult.
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Old 12-08-2005, 10:31 PM   #5
skiscott00
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Re: 203 vs 208

Thanks for the info, I will do some looking locally. Mel
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Old 12-09-2005, 12:25 AM   #6
kwmech
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Re: 203 vs 208

Also need a longer output for the trans. The adaptor of course, and a 32 spline input 205 transfer case.
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