Here's to the readers of Transmission Digest for choosing two Sonnax entries as Top Ten Shop Products of 2012! The winners were the Sonnax SmartShell and Sonnax Line Pressure Booster kits. Contest entries were featured in the October 2011 magazine issue and the winners announced in the February 2012 issue. Sonnax Top Products will be on display at Showpower Expo 2012 in Dallas, Texas.

With many options out there to address known weaknesses in the 4L60 series sun shell, the Sonnax SmartShell stands out from its brawny competitors. Adding strength where it is needed, the SmartShell also eliminates the common problem of rear planetary captive bearing burnout.
Adding a little line pressure can be a good thing. The question has always been, how much and when? Rebuilders have shown us that Sonnax line pressure booster kits not only answer the question but get it right every time. Why settle for the high-end pressure you want while having to accept harsh shifts at light throttle? Available for many popular units, these easy-to-install kits provide a modest pressure increase from the onset and all you can handle at wide-open throttle.
Sonnax Industries is an Employee-Owned Company
1 Automatic Drive · Bellows Falls, VT ·
05101-0440 · U.S.A.
800-843-2600 ·
802-463-9722
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© 2012 Sonnax Industries, Inc.