I think it's a later gearbox as the early ones had a 4 speed box ,so the installation would be the first thing to look at,hope this helps :thumbsup:
I think it's a later gearbox as the early ones had a 4 speed box ,so the installation would be the first thing to look at,hope this helps :thumbsup:hi i have sl 30-24valve 1991 year and i have problem with gearbox sometimes no shift from 4 to 5 speed or shift to 5 and again go to 4 speed if someone can help me ????????