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When you buy a non greasable U-joint its made of top quality materials, or else it would only last 50,000miles.
When you buy a run of the mill greasable U-joint they are usually lower quality because its assumed they will be greased.
You can get high end greasable U-joints but they cost 2 or 3 times as much as the cheap greasable U-joints.
The best, which is what I get are the high end spicer greasable U-joints.
I have an aluminum drive shaft for my camaro which I have not installed. I ebayed it and took it to the drive shaft shop for ballance and U-joint replacement, if I rememer right it cost about $120 for all that.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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