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Old 10-06-2007, 12:33 AM   #1
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Default spool-vs-locked diff-vs one way

I just got a car that has a locked front diff. (The pulley has no place for diff balls)

Is this the same as a "spool"?
What handling characteristics do you see differently on these than on a regular diff?
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Old 10-06-2007, 01:11 AM   #2
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Yup, a spool is essentially a locked front axle.

Compared to a conventional diff, it doesn't turn in as well because of the lack of differential action. Thus, it can be said to be more stable.

The locked action allows maximum on-power steering. You'll find that under hard cornering on asphalt, a car with a front diff will pull towards the outside on-power. A one-way or spool car doesn't have this effect because of the locked axle on-power.

I've never raced on carpet, but I've heard that spools aren't really ideal for carpet because the high amount of traction available on carpet.
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