Brand new, old stock Austin Healey 3000 1st gear assembly complete for 6 cylinder models. This was the last original factory 1st gear produced under part number 8G3029. This is an original manufacturer part.
This gear replaces the following part numbers: AEC3566, 8G3013, 8G3014, 8G3027, and 8G3025 according to the factory parts book.
This gear was used with lay gear AEC3649 and 22B141. BN7, BJ7 side shift gearbox 12320-on, and BJ7, BJ8 center shift gearbox. According to some catalogs and other reference material this gear was also the replacement for 1st gear AEC3507 and AEC3539 early BN7 and BT7 side shift gearboxes.
What ever you decide, we recommend replacing the complete 1st gear assembly. Do not use the outer shell aftermarket gear. If your gearbox is jumping out of 1st gear, this is caused by worn a layshaft and bearings. We have NOS layshafts available for laygear 22b141.