It includes one overdrive gear, a lightweight aluminum housing, and adaptability for four wheel drive use.
[1] The SR4 was a light-duty 4-speed manual that used ball and needle bearings on the countershaft with bronze synchronizer rings.
[4] The T-5 has become a popular restomod option for older and classic manual transmission cars, as the overdrive gear can improve fuel economy.
[1] If this is not visually accessible, the color of the synchronizer rings can be used to distinguish the two types, with the oil fill plug removed.
Most STD transmissions have a first gear of 3.75 to 4.10:1 for smaller-displacement engines; these so-called 4-cylinder T-5s are rated up to 240 lb⋅ft (330 N⋅m) of input torque.