I see 2 kits listed for this online.....is the only difference plastic and steel? 70001 and 70355 ......would prefer to use the steel one.
Welcome to the Raymarine Forum BellevilleMXZ,
Raymarine offers the following trunions for the c9x and e9x MFDs:
R70355 Metal Trunion Kit
R70001 Plastic Trunion Kit
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here for information addressing how to purchase parts for Raymarne products.