[rumpity_z28]

Hi guys

Looking for some info on who makes the product.Its an additive that is used in your diff when you install used gears.What you do is set up your used gears in the diff with the correct back lash(which will howl a little )then you use this additive which has some grit to i guess you could call it.You drive the car for say 500 miles.During which this stuff helps the gears find they're happy place (so to speak).Then you drain the diff pull it apart and completelly clean everything to get this stuff off.You want it like surgically clean to be sure this stuff is all gone.then you put her back together with fresh oil like you normally would and from what i understand you'll have no howl or very very close to it.

Any one no who makes this stuff?

[tresi]

If it has any gritty stuff in it I would not put in. If the gears are still servicable set them up with correct pinion depth and backlash and it won't make any more noise than a new gear set. If it does the gears really weren't good enough to reuse.

[rumpity_z28]

Originally Posted by tresi

If it has any gritty stuff in it I would not put in. If the gears are still servicable set them up with correct pinion depth and backlash and it won't make any more noise than a new gear set. If it does the gears really weren't good enough to reuse.

Yeah but the problem with used gears is when you remove them they usually have .010 backlash or more due to wear,then you put em in your car and set the backlash to say .06 and suddenly you have a howl right?thats where this stuff comes in handy.Yes it will slowly eat your bearing if you leave it in,abut they have a reccomended amount of miles that you run it for and no more

[Bumpstick]

Well the thing is you dont setup a used gearset with .006 backlash... .010-.012 for a used set is fine but make sure the heel & toe contact pattern is correct (if they were setup right to begin with)... Once a gearset has a pattern thats were it needs to be ran if moved to another housing... This applies mainly to street (hard set) gears but the softer "pro" sets are more forgiving in this area mainly because they are not driven on a daily basis...