Gearbox assembly Cooper FJ 5 speed

Cooper Ersa 5 speed Formula junior gear box. This gear box is made to the original specification with 5 forward gears. All the components are interchangeable with an original gear box and so comply to current Fia regulations for replacement parts. As well as supplying complete built gear boxes we are able to supply all the parts individually. The castings are all produced off our own pattern work in UK foundry's. We machine all the castings on our CNC machines. All the gears and internal are also produced in our factory. ERSA Alliance 5 speed case, Magnesium Cooper gear box lid, 5 pairs of straight cut gears. Steel selector forks. Original Citroen open differential to comply with Formula Junior regulations. Bell housing and drop gears will also be required See our assembly GEARBOX&BELLFJ5S