Do you mean the steering rack boot?
Whenyou check the vendors, insure it is the correct boot. At least one vendor sells a dramatically inferior substitute.
There should be 8-9 pleats, if I remember correctly, not more. (one vendor tried to sell me a set with like 14 pleats, way too long!).
I eventually bought a couple of pairs from DeTomaso directly, before they closed. Not cheap, but the RIGHT part. They are TRW, but I don't know an alternative source vehicle.
Good Luck!
Chuck