I have Nismo TC bushings that I had a friend press (after I hacked the stock ones out). I put Whiteline TC's in my brother's car, which could have been pressed with a bench vice.
I did have poly bushings on my old Toyota. If you're talking about the bushings that hold the bar to the chassis, put some silicone pipe thread tape on the bar where the bushings go before putting them on. When you hit something like a speed bump, the bar will twist inside the bushings. If it's just steel bar on poly, it'll squeak.
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