9 inch differential

[Heo]

Long time since i worked on a rear end so
i dont remember. In a 9 inch rearend can you
replace a 2.72-2.82 or around there that i have
with a 4.10 -4.56 or do i have to replace the
differental(Ford Factory LSD) .I remember you have to do it
on brand x differentials.
And who makes high quality streetgears today
i rather pay more and get something thats last
than cheap junk thats start howling like a horny dog
 

[jayb]

I've run anything from 2.75s to 4.30s in the same carrier, so I think you can use any ratio.  I would recommend either Richmond or Motive Gear for the gear manufacturer.

[Heo]

Thanks Jay.
I have the Ford LSD clutch type
differential can it handle a 445
and manual trans

[My427stang]

Sure it can, for a while.  I ran a clutch type in my 489 for years.  As long as tire sizes are the same, you arent doing a lot of burnout box action where one tire may catch traction quickly, and assuming you run a good limited slip additive, they do real well.

Once one of those variables are tweaked, it gets ugly quick.

There are some that have a big hole drilled in the clutch hat, they can crack over time, but generally on the street they all do fine

[e philpott]

Ross is dead on .... the water box at the track can wipe them out quickly

[Heo]

Ok thanks.
The winter will soon be here so im making
a shopping list then the rear only need
a R&P
Can someone recomend a good clutch
without to much pedal preassure so my
wife can drive it.