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Discussion Starter · #1 ·
I have a 78 280, with the five speed out of a 79 ZX. I hate the ratios. There is a huge gap from first to second gear. Are there any trannies from other Nissans that will bolt up without modifications? ie: Late model 300ZX or 240SX possibly? What about the Nissan trucks? We have a four cylinder one of those and it scoots pretty good with only about 115 HP.
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RE: Alternate transmissions?

The trany you have has the closest 1st to 2nd for a stock O.E. Nissan trany. Even the later ZX trany has a wider 1st to 2nd gap (the turbo is really bad) then what you have (although 2nd to 3rd is closer). Nismo sold a couple gearboxes with closer ratios, but these are hard to find and usually expensive.
The 240SX and 300ZX use different gearboxes altogether, without mods these gearboxes won't even bolt up to your motor, not to mention that these have a wide ratio gear set.
 
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