weakness of stock 10 bolt?
weakness of stock 10 bolt? hey i tried searching but i couldn't find anything helpful. I know that our stock rear ends are weak, but i've never been able to get an answer as to why and what can you do besides getting a ford 9'' rear. Is it the actual case that fails or is it a problem with the gears? thanks in advance guys.
Ring gear is small -and- not many teeth, go to high gear
ratios and you have very few teeth engaged at a time
so they are highly stressed / shocked.
Axles are likewise spindly.
Torsen works by metal bind & scrub, too much of that
under power and you will destroy it from concentrated
heat. Even normal hard driving makes shavings galore
once you overrun the torque biasing limit.
Rear suspension is prone to wheel hop which makes a
lot of impacts to the drivetrain, well above what the
motor/trans would deliver on their own. Do not beat it
through wheel hop unless you're looking forward to
buying bigger hardware.
Crush collar can be hammered down by abuse opening
up play in the gears and leaving more slop for gear tooth
impact.
Put a T-2R chunk, stay at 3.42s or below, hard pinion
spacer, a reinforcing cover (one that lets you change
the oil on interval, which is less than you'd think) and
good axles. Then you will be completely surprised when
it breaks. Heh. And you'll be out at least half the price
of a stouter piece.
The only bonus is, the lightweight stocker is going to
handle better especially on rough pavement due to the
lower unsprung weight.
I'm pretty convinced it's shock loads, impacts to the
drivetrain, that at least initiate the failures (although
the coup de grace may come from any event; cracks
propagate over time from some initial flaw or strain).
So try and be nice to it when abuse is unnecessary.
ratios and you have very few teeth engaged at a time
so they are highly stressed / shocked.
Axles are likewise spindly.
Torsen works by metal bind & scrub, too much of that
under power and you will destroy it from concentrated
heat. Even normal hard driving makes shavings galore
once you overrun the torque biasing limit.
Rear suspension is prone to wheel hop which makes a
lot of impacts to the drivetrain, well above what the
motor/trans would deliver on their own. Do not beat it
through wheel hop unless you're looking forward to
buying bigger hardware.
Crush collar can be hammered down by abuse opening
up play in the gears and leaving more slop for gear tooth
impact.
Put a T-2R chunk, stay at 3.42s or below, hard pinion
spacer, a reinforcing cover (one that lets you change
the oil on interval, which is less than you'd think) and
good axles. Then you will be completely surprised when
it breaks. Heh. And you'll be out at least half the price
of a stouter piece.
The only bonus is, the lightweight stocker is going to
handle better especially on rough pavement due to the
lower unsprung weight.
I'm pretty convinced it's shock loads, impacts to the
drivetrain, that at least initiate the failures (although
the coup de grace may come from any event; cracks
propagate over time from some initial flaw or strain).
So try and be nice to it when abuse is unnecessary.
