Spool/clutch-posi/truetrac/locker ( help me make a wise choice )
11-16-2018, 09:47 PM
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Spool/clutch-posi/truetrac/locker ( help me make a wise choice ) I can't find any posts newer than 2010 so I was wanting new information and appreciate all the help ahead of time. I have a 9" being built and I have several options to choose from and need help; I'm close to 600 rwhp so I'm going to go with a 35 spline unless y'all think that's to much over kill. This is a weekend vehicle that is used for highway pulls and sees the strip several times a year if that. I have to choose from a 35 spline HD drag spool, clutch posi, Eaton Truetrac, or Detroit locker; I was told that I need to stay with the Truetrac but I would like more info before I make an expensive decision
thanks
thanks
11-17-2018, 08:30 AM
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God, no question in my mind. Spool. Heck I tuned a car yesterday with a Moser 9", 35spl, and spool and you could hardly even tell it was there, on a Mickey rear tire too. I don't think I'd ever go back to a posi unless it was a daily car. And I'd never have a locker, too many horror stories about how people hate how they lock and unlock.
11-17-2018, 01:53 PM
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God, no question in my mind. Spool. Heck I tuned a car yesterday with a Moser 9", 35spl, and spool and you could hardly even tell it was there, on a Mickey rear tire too. I don't think I'd ever go back to a posi unless it was a daily car. And I'd never have a locker, too many horror stories about how people hate how they lock and unlock.
11-17-2018, 02:40 PM
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11-17-2018, 05:40 PM
#8
anyway 01redssa4, correc about the big price difference, but in my opinion its worth it in a daily driver. all good things come with a price, and that is indeed the only compromise with the strac. you mentioned in your first post hands down if it wasnt his daily, but it depends on how smooth he wants his weekend cruiser. i never owned a spool but i rode in one.....would never buy one unless i only drove it to and from the track. any other time i would hate it. but as we have learned from this site, many can put up with the extra noises and harshness coding our cars can make, and many hate extra noises. i thought i could deal with the extra noises form rod ends on my LCAs and PHB, i was wrong and had to swap them out for something different......also the price gap is a little less
strange 35 spline spool for 9 inch D1518 is $150
eaton 35 spline mechanical locker for 9 inch $600
strange 35 spline s trac for 9 inch N1980 is $985
both summit pricing, so $845 price difference......so kinda 900 but lets make it fair between the 2. it was only an extra 800 for the strac over spool form midwest chassis.
and i dont think the s trac has that many small parts in it compared to a clutch type posi. to the OP, if you haven't ridden in a car with a spool, id recommend doing it first and be in it when the driver tries to park it in a parking lot and/or cut the wheel all the way while turning slow.....if you can deal with it, then save the money and go spool......i do agree with the locker thing tho, never been in one of those either, but a decent locker is under 400 away from smooth and quiet operation with id say identical strength........but any of the 3 options above are more than adequate for 600 rwhp.
side note, the wavetrac is similar to the s trac but that wasnt on your list. im not a moser fan, but i dont think the wavetrac has had any real failures.....200 bucks less you get no warranty and worm gears instead of helical. my final thoughts for you op, i wouldn't go smaller than 31 spline axles....that gives you a little buffer in that area. 31 spline clutch posis are about 3-450 depending on brand nd should all be rebuildable and handle your goals. dont know how long they last and if the odd chance they break i dont know if they take axles or the center section with it. if you have no spools to ride in first then i would recommend NOT getting one, and going at least clutch type posi. if you want to never ever ever worry about it again (99% certain you won't have to) then go s-trac. strange makes some good stuff.
Last edited by Floorman279; 11-17-2018 at 05:50 PM. Reason: ....
11-17-2018, 05:44 PM
#9
from a durability standpoint, the spool should basically be unbreakable as you mentioned by default, since there really isn't much to break.......however, how many performance items especially those rated for sub 1000 hp do you know that offer any warranty at all? strange would not have put that warranty on their unless they were dead certain they wouldn't have to honor it......does the spool have a warranty? nope......but they needed to bribe people to get them to spend 1000 on a carrier
11-18-2018, 07:28 AM
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I guess it preference, but once you accept that a tad bit of bucking is normal, you forget about the spool. Parking is a non-issue. The ONLY time i notice it is making the turn out of my driveway onto the street. Even the 90 going from the neighborhood onto the hwy it doesnt buck. It may chirp the tires just a smidge during tight corners also. Again, once you used to it, you don't even notice. Guess it's just how much those things will bother you. For price and reliability I could care less. Also to mention weight, my 33 spline trutrack was 28lbs, my strange spool is 8. So 20lbs of spinning mass gone as well.
11-24-2018, 12:54 PM
#12
God, no question in my mind. Spool. Heck I tuned a car yesterday with a Moser 9", 35spl, and spool and you could hardly even tell it was there, on a Mickey rear tire too. I don't think I'd ever go back to a posi unless it was a daily car. And I'd never have a locker, too many horror stories about how people hate how they lock and unlock.
i dont know man, I’m tempted to call BS unless you got in it on the highway and stayed on the highway the whole time. My car has a spool and I’m looking for a posi or someway to make it more tolerable.
11-26-2018, 08:14 AM
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Whats your huge beef with it? Mine is all rod ended suspension, and i pull tight corners and u turns and **** all the time. Yes it will bind up some turning sharp, but once you accept the fact that its ok and not gonna hurt anything you allow your mind to relax and not worry about it. I mean, how often do you turn sharp anyway? It's not a comfort thing like say removing sound deadener and the car is louder 100% of the time.....
11-26-2018, 10:23 PM
#17
That is what Strange said. They said they would warranty it if it is broken, but they don't think it is. It is just the combo of the 6 speed, the power and the S-Trac. If I had an auto I might could get away with it, but with the power this setup can make, I need a spool anyway. It would have been cheaper too dang heck, lol.
11-27-2018, 10:43 AM
#18
Noway I would run a spool on the street, it ruins the handling and chops the **** outta the tires. I put up with a spool on a high HP car and it wasn't any fun. Trying to turn under power is not fun!
11-27-2018, 01:28 PM
#20
For a car I want to drive as much as possible there’s to much jerking and popping going on in the turns. This is a stick car with 4.10’s, poly control arm bushings and a 245/45/17 drag radial. Some one said a taller sidewall might have more give and a rear sway bar can help. Those are 2 things I’m willing to try.