Taking the data collected in our previous tests, we ranked the bolts to find the winners and the losers. We first defined what we consider to be the important criteria for LBJ bolts, then assigned different weighting factors to each criteria. For example, criteria that improved confidence in knowing the actual preload generated at FSM […]
LBJ Bolt Testing – Winners and Losers Read More »
In this series of tests, we will determine the torque values at which the different LBJ bolts reach their yield, ultimate, and fracture loads. We used the same test setup as for the load vs. torque testing – a tapped stainless steel plate to represent the steering knuckle, a flat stainless steel plate to represent
LBJ Bolts Torque-to-Failure Tests Read More »
Our first set of tests characterizes the torque vs. preload relationship for each bolt. Why is this important? Let’s start with the purpose of torquing a bolt – it is to introduce enough clamping load (preload) into the bolt to keep the two bolted parts properly compressed during use. Too much preload, and the bolt
LBJ Bolts Preload vs. Torque Tests Read More »
Why Test? Which Toyota Lower Ball Joint (LBJ) bolts are the strongest? Are aftermarket bolts better than OEM? How much torque should be applied during installation? Can LBJ bolts be reused safely? Should Loctite be used on the bolts? These questions are important because LBJ bolts have been known to fail from too much preload
Everything You Always Wanted to Know About Lower Ball Joint (LBJ) Bolts – and More! Read More »
