I'm having my Steering gear box rebuilt. Since I lost most of the hydro fluid I want to go a head and replace the filters in the reservoir.<br/><br/>I read the post about replacement, but it leaves me with a couple questions.<br/><br/>1. I can't cross deference the Nelson 83101B called for in the text.<br/>2. How many filters are in the canister? <br/><br/>Thanks!