Do you have access to a stock LCA to look at out of the car? If so look at it, the LCA is made up of several parts, the tapered pin that slides thru the K member is pressed into the LCA bushing, which is press into the big steel socket that the torsion bar fits into. If you remove the torsion bar the LCA still won't come out until you remove the nut and washer that holds that pin in and loosen up and remove the lower strut retaining nut and washer The torsion bars do have a really chinzy thin retaining ring in the trosion bar and trans crossmember, but it isn't intended to keep the trosion bar and LCA from moving from front to rear