MATCO mfg axles that are aluminum are black anodized and steel axles are yellow zinc.This axle assembly uses the WHLA1B axle which has machined stops to allow simpilified installation of the WE51 wheel and brake. No separate spacers are required when using this assembly for the WE51 wheel. Product Comparison Table
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.