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Purple Cranium Products FAQ's
Q: How far does your Rock Crusher Cover protrude past the stock cover location that I presently have on my axle.
.250, one quarter on an inch. When designing it, we wanted to keep the covers outer structure as close to the axle as possible. The cover is a full .250 thick that is why it protrudes this amount, it should not interfere with most steering applications.
Yes, All of our Spider Rock Guards and Rock Crushers are supplied with Stainless Steel mounting hardware.
Q: I would like to paint my Spider Rock Guard the same color as my truck. Can I order the Spider without any powder coating applied to it; bare metal.
No, none of our Spider Rock Guards leave bare. If you are going to custom paint your Spider yourself order the powder primer, it's a great base for your paint.
Q: Can I order a chrome cover and Spider Rock Guard and order them each powdered coated a different color?
Yes, Under each of the items you can choose you color preference or no color at all (for the differential covers).
Q: You state in some of your product information that NMSS Socket Head Cap Screws are included in your packages.What does NMSS mean?
NMSS, Non-Magnetic Stainless Steel. These are a very fine grade of stainless steel fasteners, with almost no carbon steel therefore they are non-magnetic.
We manufacture more Spider Rock Guards than Rock Crushers, do we manufacture a Spider Rock Guard for your application? If not you are still in luck, we can manufacture a Rock Crusher cover complete with integrated drain plug, dip stick, internal magnets, powder coated inside and out and all NMSS fasteners for $225.99.
Q: I have an aftermarket Aluminum cover for my Sterling axle on my Ford Super Duty, it is not a PCP Aluminum Cover. Will your Spider Rock Guard for Aluminum cover fit my cover?
It may or it may not. Our Spider Rock Guards for Aluminum covers are only guaranteed to fit our PCP Aluminum covers. The casting thickness and drain plug location varies tremendously from manufacture to manufacture. Although many customers have said our covers are exact matches (size and dimensions) for some of the other aftermarket covers, we cannot guarantee it will fit.
No, to increase fluid capacity we would have to make our covers larger, which would make them more susceptible to getting hung up on rocks.
Yes, we ship to Alaska and Hawaii, obviously shipping cost will reflect the location.
No, we are the manufacture and distributor; all orders are shipped from our Dearborn shop.