Prothane makes bushings in both colors. But is there a difference in them? Is one harder than the other? There are a lot of misconceptions about the color difference in Prothane's bushings, so let us at DST clear that up for you.
Aside from the actual color, there isn't really a difference at all between the red and the black. They are the same durometer, or hardness, so they will perform the same and both should last the life of your vehicle.
The black bushings do have a small amount of graphite mixed in with the polyurethane which has the potential to help with squeaking. But really, the best way to prevent Prothane bushings from squeaking is to use the supplied pre-lube* and grease them properly at install. So whether you choose the red, or the black, just be sure to grease them properly to avoid any squeaking.
* Some types of bushings only compress, such as body mounts and endlinks, and do not come with grease because they do not need grease. So if your kit comes with grease, be sure to use it!
For a limited time only, when you purchase any of Whiteline's Roll Center or Anti-Lift Kits, you can receive any product up to a $50 MSRP value, FOR FREE. This promotion applies to any order made through DST on qualifying products between October 1st through October 31st in 2016.
All you have to do to receive your offer is complete the rebate form and mail it to Whiteline along with the proof of purchase sent to your email after you buy your Roll Center or Anti-Lift Kit by November 15th. You can receive your rebate form through email by signing up for the Whiteline Apex Club. Whiteline staff will email the rebate forms once you have signed up in two waves:
Offer valid on all purchases of qualifying part numbers in the month of October in 2016 and postmarked by November 15, 2016.
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