Concerning buying cheap control arms and using only the boots. That an be done.

I changed my upper control arms long ago to Uro upper control arms many many years back. Now I think the URO company has evolved over time so I can't say the present product is the same.

After 2 years the URO upper control arm boots cracked.

So, my thought is in the long run it is best to take the time to get the dimensions so you can source generic boots.

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84 300D, 82 Volvo 244Gl Diesel