We're researching doing a JK version front housing with an optional caster angle. We don't really want to make this a 'custom' so we need to know if one specific angle will fill the need for most of the market.
What do you think? What caster angle would you like to have?
Here is the axle that Phil is talking about installed on his Jeep. Unless you have custom super long control arms, I would only recommend a 3 degree pinion angle. The upper arms had to be lengthened somewhere between 11/16-13/16". The Tera Flex Upper arms have a ton of adjustment and worked perfectly for this application.
The stock Rubi front D44 seems to have about 0 degrees pinion with 4.5 degrees caster. With a TF 4" lift my front driveshaft is at about 9 degrees, so splitting the difference at 4.5 degrees on the pinion and 5+ degrees caster should be in the pocket. OTOH, for shorter lifts maybe the 3 degree suggestion would work better, and would work for most other suspensions.