The silent blocs supplied by Yellow Box Engineering Ltd are made to order in small batches with a 100% inspection regime to provide superior quality. They have an improved design compared to the original parts and are all of new manufacture using quality materials. Each set of silent blocs supplied by Yellow Box Engineering Ltd consists of:
High precision housings machined from a solid billet of steel.
Broached tube.
The above two items bonded together with age resistant rubber.
Splined connecting pin - splined over its full length.
A set comprises of 4 housings, 2 splined connecting pins and 2 M8 retaining bolts.
These silent bloc assemblies have been machined to ensure that no additional stresses are introduced on assembly and that there is no need for shims to obtain the correct alignment of the bottom suspension arms.
The splined connecting pins give a constant and equal contact along their full length both in the broached tubes within the silent bloc housings and the bottom suspension arm. As the silent blocs are splined over their full length they give maximum support to the bottom suspension arm.
These silent bloc assemblies can be installed with the use of a 3kg copper hammer, suitable drifts and support bosses/tubes. It is essential when assembling a cradle with any silent blocs that the broached tube within the silent bloc is fully supported at all times.
