A suspension system that requires minimal or no welding and can be easily adapted for use with a variety of frame configurations without adversely affecting the frame integrity. One embodiment includes a top bearing (21), a base bearing (31), an upper clamp (19), and a strut (41). The bearing inserts may be secured with conventional fastening means, for example, adhesives or screws. In one embodiment, a lower spring seat may be secured with a snap ring and heat sensitive materials may be used. Thus, the suspension systems may, if welding is necessary, be installed using standard frame welding practice without the need for extraordinary or special fixtures or procedures. Options are thus now available in component material selection and suspension configuration which have previously been limited because of the heat of welding. This frame integral technology may be used with only minor changes to current fabrication practices.