Ive got Cobra R front brakes and 03/04 Cobra rear brakes on my 2002. I got some Russell Speed bleeders (639630) for all the calipers. The rears screwed in fine, but there are still a couple of threads exposed (too long?) , the front are very tough to screw in. Is this normal for their to be a lot of resistance when screwing in speed bleeders compared to just a regular bolt like for the brake line? I dont want to wrench it in, and then find out i cross threaded everything.