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Old 11-14-2009, 10:04 AM
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spool vs. mini spool

HEy so i bought a parts truck for the 72 f100 and it was a drag truck with a 4:10 non posi rear and i want to make it posi so should i go with a spool or mini spool. I do know difference between the two but which will work better or last longer? And if so do they act differently?

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Old 11-14-2009, 10:18 AM
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With the mini spool, the weakest link is the pin that locks the spool to the carrier. WHEN that breaks, you're done. I would opt for a full spool over a mini spool any day.
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Old 11-14-2009, 10:20 AM
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If it's a drag truck only that will see no street use, I would go full spool instead of a mini. The full spools are stronger and will last longer. Make sure you get one for drag racing and not dirt racing, there is a difference.
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Old 11-14-2009, 10:28 AM
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Quote:
Originally Posted by S10 Racer
If it's a drag truck only that will see no street use, I would go full spool instead of a mini. The full spools are stronger and will last longer. Make sure you get one for drag racing and not dirt racing, there is a difference.
Could you en-lighten us as to the difference as my supplier only carries one kind of spool

Sam
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Old 11-14-2009, 11:03 AM
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Quote:
Originally Posted by OneMoreTime
Could you en-lighten us as to the difference as my supplier only carries one kind of spool

Sam
When I was looking at buying a full spool for my S10 drag project, I almost bought one because of price alone but found out it was for dirt racing which according to the company that was selling it, was not a good choice for a drag race application. I ended up buying an Auburn full spool from the same company.
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Old 11-14-2009, 12:21 PM
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The only thing I can think of is one is a lightweight vs a standard weight spool. Might not want to use the lightweight one on dirt....?
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Old 11-14-2009, 12:32 PM
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If it's a street ride only. I mean more time on the street then the track i would'nt even consider a spool of any kind. They are designed to go straight the do not do well around turns, They will bind up and can snap a axle and if jar on it in a turn a spool is just like a welded up gears IMO. I have had and still have spools but i won't run them in a street ride. JMO.........(OneMoreTime ..Sam ) I will answer the question for you of you don't mind..............Here is your answer. A mini spool fits inside the standard open differential carrier replacing the spider gear assembly completely, same thing as a mini-locker. But they both do the same thing.

A full spool replaces the ring gear carrier and spider gear assembly completely with a single piece. ................Cole

Last edited by eloc431962; 11-14-2009 at 01:12 PM.
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Old 11-14-2009, 02:44 PM
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Quote:
Originally Posted by 72fordlb
HEy so i bought a parts truck for the 72 f100 and it was a drag truck with a 4:10 non posi rear and i want to make it posi so should i go with a spool or mini spool. I do know difference between the two but which will work better or last longer? And if so do they act differently?
They will act exactly the same. Same end product just a different way of getting there. Full spool is much stronger and will last longer.

Which Differential do you have? 9" or Dana 44? If it's a 9" maybe consider a Trac Lok? Yukon has a great unit for the 9". If its a Dana 44 I would try and find a Power Lok unit for it.
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