Dana 44 thick cut gears?

[br0nc0xrapt0r]

what is the deal with thick cut gears and regular gears? I want 4.56 gears but need to know witch ones to get.

 

[broncomitch]

thick cut gears are just that, thick cut. the teeth are bigger and spaced more apart. where as normal gears have lots of teeth and are cut closer together.
get the normal one's

 

[br0nc0xrapt0r]

does it matter what carrier you have or they all bolt up the same?

 

[Steve]

thick cut gears are just that, thick cut. the teeth are bigger and spaced more apart. where as normal gears have lots of teeth and are cut closer together.
get the normal one's

Um, wrong. Way wrong. %)

Dana axles have a "carrier break." For the D44, it's between 3.73 and 3.92 ratio gears. If you currently have 3.73 or numerically lower gears, and you want to install 3.92 or numerically higher gears, you either need a new carrier or thick cut gears.

The name has nothing to do with how big the teeth are or how they're spaced. That's determined solely by the axle and the gear ratio.

 

[JWMcCrary]

Um, wrong. Way wrong. %)

Dana axles have a "carrier break." For the D44, it's between 3.73 and 3.92 ratio gears. If you currently have 3.73 or numerically lower gears, and you want to install 3.92 or numerically higher gears, you either need a new carrier or thick cut gears.

The name has nothing to do with how big the teeth are or how they're spaced. That's determined solely by the axle and the gear ratio.

Steve is correct...X2

 

[br0nc0xrapt0r]

ok well the dana 44 front I have waiting to install, when I turn one rotor a full turn the yoke turns just over one time so it should have 4.10 gears this means I need regular gears when I get my 4.56's

 

[broncomitch]

lol i figured. but took a guess. i been around rockwells to much.

 

[DirtDonk]

ok well the dana 44 front I have waiting to install, when I turn one rotor a full turn the yoke turns just over one time so it should have 4.10 gears this means I need regular gears when I get my 4.56's

Although that may be true, can you just pull the front cover and count the teeth to make sure? An open diff can be finicky when just turning a rotor with no weight on the other end.
You're probably right, but it'd be nice to know for sure before you invest.

On a side note, are you putting it in as-is or are you changing the diff to some kind of limited-slip or locker? Reason I ask is that if you are, you don't need to know what it is currently. Only what diff is going in. You buy the diff for 4.56's, you buy the normal gears for 4.56's.
If you're keeping the original diff carrier though, maybe double check with a quick visual.

Paul

 

[byson1]

ok well the dana 44 front I have waiting to install, when I turn one rotor a full turn the yoke turns just over one time so it should have 4.10 gears this means I need regular gears when I get my 4.56's

????
If you have an open differential and you turn the rotor one complete revolution (360 degrees), the yoke will make just a little over 2 revolutions IF you have 4.10 gears. That is only if the opposite rotor (axle) does not turn at all during this procedure. The spider gears are turning at the same time so that's why the yoke only turns 2.05 times the amount rotor does if it has 4.10 gears. If you have a locker or limited slip then the yoke will turn 4.10 times. In this scenario the spider gears are not turning. By your measurement you only have 2.?? gears which is highly unlikely.

 

[Broncobowsher]

Um, wrong. Way wrong. %)

Dana axles have a "carrier break." For the D44, it's between 3.73 and 3.92 ratio gears. If you currently have 3.73 or numerically lower gears, and you want to install 3.92 or numerically higher gears, you either need a new carrier or thick cut gears.

The name has nothing to do with how big the teeth are or how they're spaced. That's determined solely by the axle and the gear ratio.

Correct answer above.

are you planning on just a gear change or do you want to change the differential unit as well (limited slip, locker, etc.)? If doing a carrier swap as well, the parts must match (normal 4.56 gear with a 3.92 up carrier is the common way of doing it but thick gears with 3.73 and down carrier is also possible). The few thick gears I remember cost more then standard gears, so getting the matching carrier (which cost the same) then is the less expensive way to go.
If it is an open diff that you are keeping, may be good to replace it anyway with the 3.92 and up. Last one I got was $50 and was nice and tight, unlike the worn out cloppy carrier that was there. Also the carrier works better with a lock-rite or other lunchbox locker as it is in spec and not worn out.

 

[22213evl]

got a semi new (about 900 miles) 3.92 and up carrier that I just pulled out of my d44 last week.pm if your interested shipping will prob kill ya though
it was run with royale purple it's whole life
pulled it to put in ARB

 

[SteveL]

lol i figured. but took a guess. i been around rockwells to much.

We're talking gears not pizza