Astrionnova Dual-End Strut Spreader and Lower Ball Joint Separator – Heat-Treated Steel, Fits 1/8"–1/2" Gaps

A strut-spreader and ball-joint separator that speeds suspension service while protecting steering knuckles and preserving OEM threads.

When replacing shocks, struts, or coilovers, the Astrionnova Dual-End Strut Spreader Tool and Lower Ball Joint Separator lets you separate pinch-bolt hubs and pop lower ball joints without resorting to hammers or chisels. Built for mechanics and DIYers who work on European and domestic vehicles, this compact two-ended tool minimizes damage risk and reduces labor time by keeping the hub on the vehicle during disassembly.

How does this tool prevent damage to aluminum steering knuckles?

The Astrionnova tool expands smoothly to separate split hubs, eliminating the blunt-force impacts that can crack or mar pricey aluminum knuckles. Controlled expansion delivers steady force across mating surfaces, reducing the chance of bent flanges or distorted hub bores.

• Designed to eliminate hammer blows and chisels that nick or deform knuckles
• Precision contact surfaces distribute force evenly to avoid point stress
• Heat-treated steel construction resists bending while protecting softer knuckle metal

How much time does it save during shock or coilover jobs?

By allowing you to separate struts and ball joints without removing the hub assembly, this tool typically cuts suspension service time by 30–60 minutes per wheel. Keeping tie rods and control arms intact simplifies reassembly and alignment checks.

• Removes and installs struts with the hub in place for faster turnaround
• Eliminates extra disassembly steps and associated torque-downs
• One tool handles both upper split hubs and lower ball joints to avoid tool changes

Which vehicles and fittings is the Astrionnova spreader compatible with?

The spreader is engineered for pinch-bolt style hubs commonly found on VW, Audi, BMW, Ford, Mazda and many other models. Its two working ends fit common gap sizes, offering broad compatibility across domestic and import passenger cars.

• Upper end fits 1/4"–1/2" gap sizes for split hubs and pinch bolts
• Lower end fits 1/8"–3/8" for ball joint separation tasks
• Works on many European and North American passenger vehicles with pinch-bolt hubs

What materials and tools are required for safe use?

Constructed from high-quality, heat-treated steel, the Astrionnova tool is built for repeated professional use. The design is intended for use with standard 10mm hand tools only; avoid pneumatic or impact drives to preserve threads and ensure safe expansion control.

• Heat-treated steel body resists wear and deformation
• Use only 10mm hand wrenches or sockets to turn the spreader screws
• Not intended for use with impact guns or excessive torque

Who this is for: The Astrionnova Dual-End Strut Spreader and Lower Ball Joint Separator is aimed at professional mechanics, independent shops, and knowledgeable home mechanics who service suspension components on European and domestic cars. If you perform shock, strut, or coilover work and want to protect aluminum knuckles, speed up disassembly, and avoid extra hub removal steps, this tool belongs in your toolbox.