i have 1977 k5 blazer...i have no clue about the market for u-joints...i had to replace one in the rear and i just got one from napa for $25...i was wondering if there are stronger, better made u-joints(prob more expensive) that i should be purchasing.
adam

 

Napa u-joints are not too bad. Are you doing something with the truck that makes you think that you need to have better u-joints? As long as you keep them greased, you should be good for quite awhile.

 

Napa u-joints are decent. Do you have a lift on it? If so, no u-joint will hold up unless you drop the t-case and rotate the axle, or get a cv shaft. If no lift just make sure you keep them greased.