The IronBox V2 adjustable caster lollipop brackets replace the original front control arm rear mounting brackets on compatible BMW E30 and E36 front suspension setups ⠀ The revised V2 construction allows the caster angle to be adjusted directly on the vehicle without removing the bracket bodies from the chassis, making suspension setup faster and more precise ⠀ The adjustment range can be extended by swapping the left- and right-side bracket bodies, providing additional control over the longitudinal position of the front control arms and front wheels ⠀ Heavy-duty spherical bearings eliminate the compliance associated with conventional rubber or polyurethane bushings, providing a more direct steering response and helping maintain consistent front suspension geometry under high loads ⠀ Main features ⠀
On-car caster adjustment — allows geometry changes without removing the bracket bodies from the vehicle
Extended adjustment range — the left- and right-side bracket bodies can be swapped to provide additional setup possibilities
Heavy-duty spherical bearings — developed for high-load drift, track, race, and motorsport applications
Rigid suspension connection — eliminates movement associated with conventional rubber or polyurethane bushings
Sharper steering response — provides more immediate feedback and precise front axle control
More consistent suspension geometry — helps reduce unwanted control arm movement under acceleration, braking, and cornering loads
Protective dust boots — help protect the spherical bearings from contamination and extend their service life
Serviceable construction — provides access to the bearing assemblies for inspection and maintenance
Anodized duralumin housings — combine low weight with high structural rigidity
BlackNitride-treated steel components — provide corrosion resistance and a durable finish
⠀ Compatibility ⠀
BMW 3 Series E30
BMW 3 Series E36
Compatible OEM or aftermarket E30 and E36 front control arms with the required rear mounting geometry
Front axle only
⠀ Not compatible with OEM BMW E46 front control arms ⠀ Compatibility with BMW E30 M3, BMW E36 M3, BMW E36 Compact, BMW Z3, modified control arms, and custom steering angle kits must be confirmed according to the installed front suspension configuration ⠀ Compatibility is determined by the control arm end design, mounting dimensions, bracket position, and complete front suspension configuration ⠀ Kit includes ⠀
Left-side assembled caster bracket — 1 pc
Right-side assembled caster bracket — 1 pc
Installation hardware
Operating instructions
⠀ Important installation information ⠀ A complete wheel alignment is required after installation ⠀ Caster adjustment changes the longitudinal position of the front wheel and may affect tire, wheel-arch, brake-hose, anti-roll-bar, and steering clearance ⠀ Check the complete suspension movement at full steering lock, compression, and droop and ensure that the spherical bearings do not bind ⠀ Inspect the front control arms, chassis mounting points, brackets, spherical bearings, dust boots, and installation hardware before installation ⠀ All fasteners must be tightened correctly and inspected regularly during motorsport use ⠀ Installation, suspension adjustment, and final inspection should be carried out by a qualified specialist