1. Housing Calculator

Internally, we use an Excel spread sheet that details how to cut a Spider 9 housing and what shaft lengths are needed for that same housing. All you need to know is basic details such as the Wheel Mount Surface (WMS), Pinion Offset, and Locker Type. If you would like to use this same Excel spreadsheet we use in-house, we're happy to provide this file to you free of charge. Please note Microsoft Excel is required to use these files. You may need to modify Excel security settings to edit the WMS, A, and Locker Type fields.