Adding handling package wheels to non handling pack M1

[Cabanac61]

I just installed the handling pack wheels with 305/315 30 series PS4’s to my non handling pack 23 Mach 1. I realize I probably need an alignment now as well as Speedo recalibration. My question is, will I need to install caster camber plates to get the alignment into specs for the street (not track driven). Also, if i go with steeda magnaride dual rate springs will the front tires rub the hp fender lip flares. I’ve seen a post where they did on a tracked car.

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[AZ_Ryan]

I just installed the handling pack wheels with 305/315 30 series PS4’s to my non handling pack 23 Mach 1. I realize I probably need an alignment now as well as Speedo recalibration. My question is, will I need to install caster camber plates to get the alignment into specs for the street (not track driven). Also, if i go with steeda magnaride dual rate springs will the front tires rub the hp fender lip flares. I’ve seen a post where they did on a tracked car.

Lots and lots of threads on these questions if you do a search.

To answer your question, no you don't need camber plates for the HP wheels and tires to align to spec by themselves. However, if you add lowering springs on top if that you most likely will require camber plates.

Many people run Steeda Dual Rates or Progressive Sport springs with no rubbing issues. Keep in mind though, that in combination with the HP wheels and tires, the drop is fairly significant compared to the base M1. You have to be careful on speed bumps, curbs, and driveways.