Driveshaft for 1983 Mazda b-2000

Well it seems as if i thought i found one, guy told me joints and such were good but come to find out when i got it in the mail joints were shot to shit, I was just wondering if anyone had one they could sell cheap, with good joints and with yolk and such

are those the driveshafts that you cant replace the ujoints on?

yes you can replace them on, my problem is my buddy shortened it and i put it back on and i got a real bad vibration, ive heard it could be out of balance but he said its only off 4 thousandths, and i heard thats nothing, but then agian i had a feeling my u joint was bad and he said it was and i was like hmmmm, so would replacing the u joint fix this problem?


cause he shortened it behind the weight at the end were the axle bolts up to any answers would be appreciated