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203 to 205 swap

2High4U

1/2 ton status
Joined
Aug 20, 2005
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Location
Felton Pennsylvania
im looking for the driveshaft length's for a 205 in my blazer i want to minimize the downtime to a minimum so i would like to have them on hand before i start the swap. its stock and has the original driveshafts i think it has a 4 in lift. i took it out in the snow today and seems like lowloc wasnt working but hiloc is. it gears down low in low loc but doesnt spin the tires when floored i have always hated 203's and autos :mad: if i switch to a manual later on will the shaft lengths change again?
 
I've asked this in the past and never got an answer:( But now theres snow so I'll have to wait till spring:doah:
 
I've found that when switching transmissions or transfer cases it's always a good idea to get the driveshafts from the donor vehicle. IIRC the 203 and 205 are not the same length and you would need new driveshafts. Same with the manual transmission since it's much shorter than the auto... unless of course you went with a newer manual transmission and even then you might still need drive shafts. I actually had to make my own shafts front and rear from a short bed to fit my blazer. I need to make a new front drive shaft soon since I broke my original one (which I had to shorten for the manual transmission) The reason why nobody can answer questions like this is that there are no definite answers... it would be like if I asked you what size shoes fit my feet.
 
The 205 is shorter than a 203, so you'll need a longer rear shaft and shorter front shaft.
 
When I changed from a 350/203 to a 465/205, I had to lengthen the rear shaft 6-7 inches. Whatever that's worth. The 465 is shorter than the 350, and the 205 is shorter than the 203. You're better off making all your changes at once.
 
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