Vibrations at 30 and 60mph

My truck does a decent amount of vibrating once i hit exactly 30mph, and goes away by the time I hit 40. Then at 60 a vibration comes back but it at a higher frequency. It is most definitely drive line affiliated as the truck does this at these speeds whether I am in gear or coasting in neutral at these speeds. My truck is an 05 access cab, V6 6-speed manual, TRD Off Road, all stock 97K miles. Anyone have any similar issues or advice?

 

Another possibility: I have experienced those symptoms on other vehicles with tire balance or out-of-round problems.

 

I have an 05 TRD OR v-6 MT with 206K miles. This summer I replaced the carrier bearing and all 3 u-joints in the drive shaft and vibration problem solved. Crawl under and inspect your CB, mine was shredded and when I replaced the u-joints, 2 of them were cracked.

 

Didn't know this was such a common issue. It relieves me a little knowing I'm not alone. I was thinking it was the carrier bearing. Had a truck in the past with a similar vibration and that was the culprit.

 

Haha thanks Graham looks like we are on the same page.

 

My pleasure! I bought the parts online for under $100 bucks and had a mechanically inclined buddy help me out for the price of a couple of cases of beer.