Help with the #8 plug

[PNYXPS66]

Aluminum driveshafts are a good thing especially if you are racing. the tend to keep their balance better, and are of course lighter. They are not less suceptible to warpage, or twisting as some steel shafts can be, and they can be cost effective. Example of this goes to the newer mustangs '79+; The steel driveshaft new from Ford costs $400+ and is in great limited supply. The Motorsport shaft is better and lighter and costs $225. I just had to replace the shaft on my 88 because the slip yoke had worn a groove where the extension housing seal had worn over the years. The only way to replace the slip yoke is salvage yard (great! get someone elses worn part!) or Ford/Motorsport driveshaft. I don't know of a slip yoke sold separately. That's another issue for another forum though. Bottom line, Aluminum is better.

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Pony Express 66
God Speed and keep it between the lines!