None had the 3550 from the factory.....May 7 2012 at 2:39 PM
from IP address 126.96.36.199
Response to Agreed
....just like no cars have the TKO 500/600 from the factory. The most common overdrive manual boxes were the T5, T45, 3650, and the T-56.
The 3550 was the older version of the current TKO 500/600 with a much lower torque capacity.
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