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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: newmans75-k20 on December 09, 2014, 10:05:16 pm

Title: spool?
Post by: newmans75-k20 on December 09, 2014, 10:05:16 pm
I blew up my carrier a few weeks ago and thinking about putting a spool in does anyone have a opinion on these ive got a dana 44 and 4.10s I can get the spool for 100 and a rebuilt posi for 150
Title: Re: spool?
Post by: FlatBlack77 on December 09, 2014, 10:13:44 pm
is it a street driven truck?
Title: Re: spool?
Post by: newmans75-k20 on December 09, 2014, 10:18:11 pm
some times mostly just to the trails ive got the lockout  hubs to disengage so
Title: Re: spool?
Post by: Captkaos on December 10, 2014, 07:41:36 am
I personally wouldn't run a spool on the front.
Title: Re: spool?
Post by: newmans75-k20 on December 10, 2014, 10:56:14 pm
if ya don't mind me askin why wouldn't you run the spool?
Title: Re: spool?
Post by: Irish_Alley on December 10, 2014, 11:41:11 pm
a spool up front is just like welding the gears. you have no slippage and when you try and turn right the right tire wants to roll back and the left wants to roll forward but with a spool locking the two it makes it almost impossible with out the engine running and then it puts a lot of stress on other parts including the frame.

if you have lock outs you can keep one unlocked and this will give that side all the power and makes it street able but again that wheel will be turning no matter what your doing and could cause you to lose control
Title: Re: spool?
Post by: Captkaos on December 10, 2014, 11:50:51 pm
If you do, have spare u-joints and axles.  Spools never differentiate, so if you are on something other than loose ground it will put some stress on the steering.  So make sure you reinforce/support the frame prior.
Title: Re: spool?
Post by: fitz on December 10, 2014, 11:53:12 pm
There must be some reason that on the M1028 the Military went with a Detroit locker in the rear and a limited slip (not a locker):in the front.
Title: Re: spool?
Post by: Engineer on December 11, 2014, 07:28:07 am
After installing a spool/welded front diff most guys start breaking the short axle shaft.

I recommend a clutch type or Torsen type positraction differential for the front. I'm not a fan of lockers or a locked differential in the front unless it is strictly a mud only application.
Title: Re: spool?
Post by: Fodder4U on December 20, 2014, 08:30:51 pm
Or you can get a lunchbox locker like an Aussie and get away with it.