8-piece set for extracting and locking the piston rod for shock absorbers with tension stop springs. With the BRILLIANT TOOLS assembly tool for shock absorbers with tension stop springs BT651100, McPherson struts can be quickly and easily extended to their maximum length and locked in the extended position for the installation of a new spring. The tool is particularly suitable for struts equipped with strong internal springs (tension stop springs) that partially pull the piston rod into the shock absorber tube. The tension stop springs installed in some shock absorbers (struts) are designed to prevent damage to the strut when it "jumps out" during driving. The spring is located directly inside the shock absorber and is not loaded despite the vehicle's weight when the vehicle is stationary on its wheels. The spring only engages when the strut reaches full extension during rebound. The use of a tension stop spring otherwise has no impact on the normal operation of the strut. However, there is a significant disadvantage during the disassembly and assembly of the strut, as the piston rod extends into the strut after the spring load is removed. This makes it difficult to install a new spring, as the strut does not remain fully extended. The set is compatible with most shock absorbers with tension stop springs, for example, BMW, MB, Toyota, Nissan, Fiat, Peugeot, Ford, etc. Delivery includes: intermediate support with telescopic tube thread, universal clamping piece with clamping jaw protection, T-handle, internal hex key with ball head, telescopic base device with handle, clamping screw set, and ratchet.