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Primary drive change Posted by JohnT [Email] (#1654) [Profile/Gallery] (more from JohnT) on Sat, 6 Dec 2014 16:17:23 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Hi guys,
I'm finally getting back to my 99 project after a long hiatus! I want to change the gear ratio in the transmission to be more suitable for the turbo engine. The trans is a 4 speed from a '79 900 EMS, #634402. Under that number is another number: 41109. The engine is a B turbo from a 1980 900 and the car is a '80 99GLi. The primary gear ratio is .97. Engine output sprocket has 31 teeth and trans input sprocket has 30 teeth.
So here's my question: does anyone know what's available to give the trans a taller gear? I can't find much data for these primary gear ratios. Any help would be appreciated!
posted by 71.58.20...
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