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My differential is 3.91 on the '80 245 M46
A couple of days ago I read a post indicating that one gets faster acceleration from stop than a lower gear ratio. But a lower gear ratio gives faster highway speeds at the same engine rpms.
Since I'm not into racing (jack rabbit starts) but would want better mileage, I'm thinking a lower gear ratio would be better.
But, when carrying/pulling a heavy load uphill from a stop, would I be more likely to stall with a high or low gear ratio?
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1980 245 Canadian B21A with SU carb and M46 trans
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