i have a 1989 k5 blazer with a sm465np205 combo in it but both joints on the rear driveshaft keep going out on me and this isnt wheeling its just daily driving its been about 6 in the last month idk what is wrong only 1 has been the one at the axle the transfercase one has broke 5 times is there something i am doing wrong. btw the blazer has 8 inches of suspension lift but the driveshaft angles arent that bad at all so i dont understand.
Is it held on by a strap or ubolt? If u bolt you could be over tightening it causing it to bind. Also if you blew a few ujoints your yoke is probably messed up. I fought the same thing as you and finally took a u joint and put it on the yoke, tightened it down and it bound up because the yoke was mared up and damaged. new yoke no more problems
That's why I asked for a pic. There are plenty of two piece shafts on 4X4's
I wasn't assuming anything just yet but both yokes need to be in phase if the d'shaft has a slip joint in the shaft or it's a slip joint in the t'case.
If he's going through u-joints almost weekly there is something drastically wrong. It might be bent also.
There's always more to the story..................
j-kb8ymf
cardan joint rear shaft and make sure your pinion angle is good. also, what spline count on the 205 are we working with here to suggest where to rob parts
idk if you would call it a one piece or two piece shaft because the slip yoke is on the shaft like it is on a front shaft because a 205 is a non slip yoke and i believe it is either a 28 or 31 spline not qite sure but i gotta find a new yoke now because my buddy said it was a "ujoint broke" but he snaped a ear off the yoke
go find an np208 with the flange and cardan joint front shaft. you'll have to source the flange seal but that's only 6-9$. find a long piece of tube with the same ID, remake shaft, done.
add some trans fluid to the shaft, keep the slip at about 1-1.5" each way. weld one end at a time providing time for it to cool so you don't create a pressure vessel with the oil.
tuh dah, a 40-80$ driveshaft that solves all your problems.
i found a new yoke for 45 buck and then when i get a chance i am going to take it to the driveshaft shop and have them make me a new one
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