Lower A Arm Bushing Problems

[keanevann]

So I ordered a set of lower control arm bushings for my 1/2 ton c10 last week from LMC.....When I went to put them in I noticed they had "threads", but not like the originals.....they were barely there and I could not get them to thread in!!!! So then i looked at the boxes the came in.... They were made by Three 5 auto.....then on the plastic they said Huong Sho motor co...... I was like great I got some Chinese knock offs. So I went to Napa and ordered a set from Master Ride..... almost the same thing except these look like they have relief cuts or something!!!! My question is.... are they all like this??? And if they are how did you guys get yours in???

Huong Sho is the first pic


Master Ride is the second