Gears & Axles - spool posi locker???
12-31-2002, 02:16 PM
A spool may break due to the fact that when you drive around turns it puts huge stress on the rearend. But honestly with a 9 inch i would throw a spool in there. I locker may break to and a spool is cheaper. From what you said you do with the car you wont be driving it to work every day so you will be alright.
12-31-2002, 04:01 PM
Ive never had a problem running a spool on the street. Only time you even notice it is when turning really tight corners, because the inside tire turns faster than the outside tire. All of the Pro-street guys here in Rockford run spools on the street too, and havent heard of any problems either.
12-31-2002, 05:07 PM
I just put a spool in my Moser 12 Bolt. Straight line driving is fine, making turns is trecherous! (SP?)
When you make a turn the entire car shakes, feels like you have a flat tire. I only put about 20 miles worth of street driving on her a week, so it ain't that bad. I'll get use to it.
1 positive feature of the spool is it's super lightweight compared to the canonball posi unit. It must free up about 30lbs of rotating mass.
12-31-2002, 06:34 PM
sounds like spool will be my choice, it's what Jay at billingsley recommends also.
I already crossed the line of streetability...
2000 Camaro SS
12-31-2002, 06:42 PM
I have a spool and ALL of my suspension is chrome molly, the only down fall for me is it is loud. BUT I would not change a thing!
01-01-2003, 12:20 AM
my car will be used mostly for weekend street racing and 5 or so times a month at the track.
which would be the best choice for me?
I am leaning toward the spool.
downfalls of each?
01-01-2003, 12:33 AM
IMHO, I believe a spool is too aggressive for regular street use. I would find its drivability (or lack there of) very annoying, even though my car only gets driven 2~3 times a month. I will probably get an Eaton posi unit when the 12 bolt is ordered in the spring. I currently have the Eaton in my 4 X 4 and have nothing but good things to say about it. And it was a breeze to install. Just my .02
01-01-2003, 12:49 AM
Terry, aren't you installing a 9" rear? If so, then the posi choices suck. I got a new Powertrax No-Slip. It's between a locker and a posi, and will hold 1000 hp. It also comes in 28, 31, and 35 spline units. There are no posi diffs for axles over 31 spline on a Ford 9".
01-01-2003, 12:50 AM
what do you mean by the spool being too agressive? downfall?
01-01-2003, 12:53 AM
yes, I am doing the billingsley 9" rear end.
I am thinking about getting these options
aluminum center case
moser 35 spline axles
01-01-2003, 12:56 AM
For 35 spline axles, you are limited to a locker, or a spool, or that Powertrax unit I mentioned. BTW, I have 3.89 gears in my center section, and it's a custom aluminum job.
01-01-2003, 10:04 AM
Question for LOnSLO...
How do you like that PowerTrax unit??
Is it noisy? Does it lock up properly?
01-01-2003, 11:09 AM
I haven't been able to test it yet, since my center section is still being setup. I will post results though after I flog on it <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Tom the roofer
01-01-2003, 04:30 PM
Terry, I have the ford 9" with 35 spline axles also. I took the locker out and went with a spool just for kicks <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> I take my turns real slow and everything is cool. Get the spool and if you decide you don't like it, I still have the locker. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> I could work out a deal you can't refuse. <img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" />
01-01-2003, 04:35 PM
I will keep that in mind if I don't like the spool <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Pro Stock John
01-02-2003, 10:34 AM
I have a 31 spline soft locker and it's not very noticeable.
01-03-2003, 03:07 AM
31 spline axled 9-inch with Strange spool.
I drive my car with Mickey T's on it always.
It's driven roughly three times a week and to any racing events legal or otherwise.
Like T the R said, take your turns nice and easy.
I almost learned the hard way the first week with it, that if you gas it while you're turning, it will continue in a turn in a hurry.
Oh yeah, and avoid having to push it in any situation where the steering wheel has to be turned.
<img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />