Guys,
Anyone know where i can get my driveshaft rebuild?

My waja RH driveshaft is worn out and i have replaced it with aftermarket brand but it vibrates..I claim warranty and the replacement shaft still vibrate but only slightly. The shop did warn me earlier to go for original replacement but its way to expensive for a driveshaft at 600++. They said they have similar customer feedback on aftermarket shaft for 1.8 model. Aftermarket brand is 200++.
below is the pic of my driveshaft..the...