My roomate has recently aquired an isuzu (r) and a waggy (f) set of 44s.

He wants to match the 4.30s in the suzu in the front. They run a thick gear on a low numeric carrier.

he searched here, but could not find the answer to:

Will thick isuzu 44 gears fit another 44?

He's looking for a cheap way into decent gears by buying another isuzu 44 for gears, spare shafts/brakes.

Worried 'cause the shafts are big, necked down to 30spl.

It's $300+ for just gears and he can get into the gears and spares for ~$250.

Will they do it for him?

pretty sure the answer i got was that the high gear (numerically low #) carrier will fit isuzu gears and in order to run low regular D44 gears (i think only 5.89's apply here), you need to get a low gear carrier for your isuzu axle since they come with a lower gear already but a high gear carrier, hence the thicknessof the gear, to make up for the distance from the pinion gear. it might also be good to ask this on the Isuzu board if you haven't already, just to make sure.

Originally posted by fledgling666
pretty sure the answer i got was that the high gear (numerically low #) carrier will fit isuzu gears and in order to run low regular D44 gears (i think only 5.89's apply here), you need to get a low gear carrier for your isuzu axle since they come with a lower gear already but a high gear carrier, hence the thicknessof the gear, to make up for the distance from the pinion gear. it might also be good to ask this on the Isuzu board if you haven't already, just to make sure.

he wants the waggy axle to match the suzu one.;)

i.e. he wants the 4.3s in his waggy front.

thanks though.

Why stick with those gears? The beauty of having dana 44 axles is that you can match gears like 513's and better. And the gears are cheap compared to some axles. And lockers are available at good prices for them too. Unless you have lots of horsepower or small tires, you should use lower gearing IMO.

Originally posted by TRed
Why stick with those gears? The beauty of having dana 44 axles is that you can match gears like 513's and better. And the gears are cheap compared to some axles. And lockers are available at good prices for them too. Unless you have lots of horsepower or small tires, you should use lower gearing IMO.

I am pretty sure I was not asking for a discussion on the matter.

Thanks for your input :rolleyes:, enjoy the boost to your post count.:flipoff2:

Dont the Isuzus use a larger 29 spline pinion??

ok, then, he needs to get the high gear carrier and the isuzu 4.3 gears, it should fit.

or, he can get the regular d44 low gear carrier and regular d44 4.3 gears, if they have those, not sure.

a 3.07-3.73 carrier and the isuzu 4.30 gear set will work perfectly in the waggy front axle.

if you later decide you want to switch to another gear ratio, he will need new carrier's though, since a thick D44 standard cut gear is about as popular as a 3 wing'd chicken

Thanks, he's staying with the 4.3 idea for now.

Future gear changes will be dealt with as needed.

Thanks for the topical replies.:D

How about a 4 series carrier and 4.27:1 for the front. Thats my plan so that if I ever want to go lower I only need 1 new locker (I plan to weld the original rear).

only difference is in the pinion bearings but will work fine, just use the waggy pinion bearings and get lots of shims for the set up (mine was abitch). A lot of them suzu 44's had trac-loks so try to find one of them and use the whole carrier for a cheap limited slip up front.

Originally posted by Rescue35
How about a 4 series carrier and 4.27:1 for the front. Thats my plan so that if I ever want to go lower I only need 1 new locker (I plan to weld the original rear).

Are the 4.27's really close enough to 4.3 to work? I thought the gear rations could only be off by 1/100

Originally posted by newton


Are the 4.27's really close enough to 4.3 to work? I thought the gear rations could only be off by 1/100


actually he could run 4.10s in the waggy and be fine with 4.30s in the rear...they usually say 10% (1/10 not 1/100)difference is fine, I have seen people do more but wouldn't reccomend it if there is any street time...

EDIT: This is bad info, dont listen to me:p

Originally posted by Supergper



they usually say 10% (1/10 not 1/100)difference is fine,

You might want to check into that. 2-3% is the max separation for gears. At 10% you'd be experiencing some serious driveline bind and something expensive is going to give out.:bounce2:
________
LovelyWendie (http://www.lovelywendie99.com/)

Originally posted by Indyguy


You might want to check into that. 2-3% is the max separation for gears. At 10% you'd be experiencing some serious driveline bind and something expensive is going to give out.:bounce2:

you know what, I am wrong...I always do that...I ran 5.83 and 5.89 together and I always think it was almost 10% but really it was jsut a hair over 1%:emb4:

my bad, just ignore what I have to say:D

Are the 4.27's really close enough to 4.3 to work? I thought the gear rations could only be off by 1/100

plenty close enough but the 4.30's he has are most likely 4.27 anyway, I never did the math to figure the ratio on the suzu gears just always called em 4.30's but assumed them to be 4.27 since that is the only replacement gear ava anywhere near 4.30 for the dana 44 could be wrong but somthin is tellin me I'm right.

Originally posted by psychobilly


plenty close enough but the 4.30's he has are most likely 4.27 anyway, I never did the math to figure the ratio on the suzu gears just always called em 4.30's but assumed them to be 4.27 since that is the only replacement gear ava anywhere near 4.30 for the dana 44 could be wrong but somthin is tellin me I'm right.

43 teeth on the ring...10 on the pinion...

4.30s= $350 for replacement

4.27=$150

from newton's research.

4:27-4:30 will be just fine and you probly wont get any binding unless your on a hot tar road and your tires are clean. Mud racers use ratios like 3:54 and 4:10..thats a big difference. The difference between 4:27 and 4:20 isnt 10%

Thanks for input everyone, but does anyone have any4.3:1 isuzu gears kicking around?