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post #1 of 11 (permalink) Old 01-16-2011, 10:56 PM Thread Starter
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Mini Spool

Can a mini spool be used in an 8.8 instead of a trac lok? i want positraction but im on a tight budget

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post #2 of 11 (permalink) Old 01-16-2011, 11:07 PM
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If you do any driving at all away from the track you don't want a spool.

-Matt
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post #3 of 11 (permalink) Old 01-16-2011, 11:54 PM
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If you just want a "posi" strictly for drag racing, on a cheap budget, weld the spider gears. Lol

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post #4 of 11 (permalink) Old 01-17-2011, 10:25 AM
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A mini spool will work well, for mostly dragracing duty.
Don't weld.
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post #5 of 11 (permalink) Old 01-17-2011, 11:58 AM
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It will work for the street but you will have to get used to it being always locked, the handling will change and it will cause a lot more stress on the axles and cv joints, and the pinion shaft that holds it in to the carrier will wear a lot faster than it did with an open rear.
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post #6 of 11 (permalink) Old 01-19-2011, 10:03 AM
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i welded an open diff and put it in my 89...after a few passes i ended up breaking the cvshaft at the point were it goes into the spindle.with the welded diff i was able to drive it off the track to the trailer
a mini spool doesnt sound like to bad an idea
mike

1990 ford f150 5.0
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stock bottom end 200k plus miles,afr165 heads,explorer intake,75mm tb,80mm maf,e-cam,30lbs injecters,mac 1 5/8 long tubes,homebuilt foreward manual transbrake aod,3.73 gears,welded open diff,100 zex wet shot
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post #7 of 11 (permalink) Old 01-19-2011, 11:19 AM
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Quote:
Originally Posted by joker77_2005 View Post
i welded an open diff and put it in my 89...after a few passes i ended up breaking the cvshaft at the point were it goes into the spindle.with the welded diff i was able to drive it off the track to the trailer
a mini spool doesnt sound like to bad an idea
mike
The shaft broke because the spiders were welded, spool or weld you will have the same broken shaft unless you upgrade the axles and even then it will find the next weak link.
A locker is by far more forgiving on the drive train. With a spool or welded spiders it is required to spin at least one tire in a corner and it is less stress on the drive train to spin both tires, so not the best street setup but it is doable with the correct upgrades.
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post #8 of 11 (permalink) Old 01-20-2011, 04:27 PM
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Quote:
Originally Posted by Dan Nelson View Post
The shaft broke because the spiders were welded, spool or weld you will have the same broken shaft unless you upgrade the axles and even then it will find the next weak link.
A locker is by far more forgiving on the drive train. With a spool or welded spiders it is required to spin at least one tire in a corner and it is less stress on the drive train to spin both tires, so not the best street setup but it is doable with the correct upgrades.
shaft didnt break because spiders were welded.....shaft broke because that is were they all break with to much torque from a 5spd launch
mike

1990 ford f150 5.0
1989 cougar xr-7 5spd 5.0 --249hp/[email protected]
stock bottom end 200k plus miles,afr165 heads,explorer intake,75mm tb,80mm maf,e-cam,30lbs injecters,mac 1 5/8 long tubes,homebuilt foreward manual transbrake aod,3.73 gears,welded open diff,100 zex wet shot
1989 mustang gt [email protected]
1984 tbird 5.0 auto
1999 chevy tracker...wtf!!!!!
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post #9 of 11 (permalink) Old 01-20-2011, 04:45 PM
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Quote:
Originally Posted by joker77_2005 View Post
shaft didnt break because spiders were welded.....shaft broke because that is were they all break with to much torque from a 5spd launch
mike
so you had a 5 speed...hmmmmm...I have been thinking about a spool myself...
hmmm
hmmmm
hmmmmmmmm

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post #10 of 11 (permalink) Old 01-20-2011, 06:00 PM
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Quote:
Originally Posted by _95badbird View Post
so you had a 5 speed...hmmmmm...I have been thinking about a spool myself...
hmmm
hmmmm
hmmmmmmmm
yep 3500 rpm launch off the line on drag slicks with a 100 shot .i took the 5spd out and am installing a fmvb aod with transbrake now
mike

1990 ford f150 5.0
1989 cougar xr-7 5spd 5.0 --249hp/[email protected]
stock bottom end 200k plus miles,afr165 heads,explorer intake,75mm tb,80mm maf,e-cam,30lbs injecters,mac 1 5/8 long tubes,homebuilt foreward manual transbrake aod,3.73 gears,welded open diff,100 zex wet shot
1989 mustang gt [email protected]
1984 tbird 5.0 auto
1999 chevy tracker...wtf!!!!!
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post #11 of 11 (permalink) Old 01-20-2011, 07:55 PM
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Quote:
Originally Posted by Dan Nelson View Post
The shaft broke because the spiders were welded, spool or weld you will have the same broken shaft unless you upgrade the axles and even then it will find the next weak link.
A locker is by far more forgiving on the drive train. With a spool or welded spiders it is required to spin at least one tire in a corner and it is less stress on the drive train to spin both tires, so not the best street setup but it is doable with the correct upgrades.
+1 We "lincoln-locked" the front diff (welded the spider gears) on a mud truck and used a standard locker in the rear. Any time one front wheel would get wedged (a lot more traction) and the others spin - Snap! - another front axle gone. It got so bad we only used the truck for mud runs cause taking it 4 wheeling always broke axles.

~Rick

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