mixing gears..

[ridge_runner]

hello all, i was wondering if its possible?? let say to mix a 3.42 pinion gear with a 4.10 ring gear, would this work?

[Chevyracincamaro]

i would think no. i cant honestly think of a technical reason why they wouldnt work cause i dont know much bout gears, but my intuition says no. seems like the way gears work it wouldnt be possible...

[ridge_runner]

yea i dunno either... it just popped in my head

[Chevyracincamaro]

i would think that the pinion angle would be different or there would be a problem with the difference in the number of teeth...

[4onFloor]

it can be done, but i have no clue of what combinations you would use. my friend's camaro came with 2:73's and someone messed around in there before he got it. when i counted the teeth i came up with some goofy shit number.

[ridge_runner]

yea, i have 3.42 ratio right now, and im gettin a set of gm 4.10s for 50 bucks, (used) and i was thinkin bout just puttin the 4.10 ring on my diff, i was thinkin that would give me like a 3.73 ratio or close

[68chevelle]

i would have to say its probably not gunna work. but honetly i could be wrong. there are just to many variables to be sure, unless you try it . but if you look some gear ratios use the same gear in some cases. but who knows it the space between the teeth are changed or something. who knows. i guess it could be posible, but for a real answer you might call someone like Richmond and see what they say. and then try it. i know that would sure make swaping gears alot easier cuz then you dont have to mess the the pinon nut, crush sleve, and all that crap. 200ft.lbs. is alot and thats the one thing i hate the most is trying to get the crush sleave set correctly.

[ridge_runner]

haha i hear ya, i dont feel like doin all that shit, but hey you gotta do whatyou gotta do, i would rather put in some 3.73s but they go for alot on ebay, im gettin my set of 4.10s around 50... soo

[ridge_runner]

i jus dont wanna ruin the one ring and the one pinion and have to buy a whole new set... lol

[89IROC&RS]

i wouldnt do it, there is a number value that matches, if the distance from peak to peak on the pinion gear teeth is different than the distance from peak to peak on the ring gear teeth, than even if it matches up now, you run the risk of them actually crawling up over themselves at some point which would cause all kinds of shit in the ass end of the car, peices flying every which a way. i would not do it.

[ridge_runner]

haha that would look cool!!!

[4onFloor]

i guess i forgot to mention that the ring and pinion in my friends camaro broke in the 2000 miles after he got it. when i changed the gears for him i noticed that there were a bunch of shims under the pinion. 2 of the ring gear teeth broke, which broke 3 of the pinion teeth, and then the teeth got into the spiders and completely shattered one of the side spiders. i would doubt that your 3:42's would work with 4:10's. i think the 4:10 probly has a much smaller pinion, and thicker ring gear than the 3:42's

[ridge_runner]

damn, yea ive changed my train of thoughts about that little idea, ill just install the 4.10s

[4onFloor]

fun fun fun, but would those really be good 1/4 mile gears?

[ridge_runner]

yea i think they be ok, i dont wanna top out b4 the finish,but i couldnt pass on those tho 50 bucks, i wanted to get some 3.73s but shit there goin for alot more, i wanna get back to where i was 13.4s i have a duplicate motor same heads etc, i jus have diff pistons, i think the 4.10s would drop me lower, maybe dip down into the 12s with this motor, but im drivin the car up there, anyone kno what rpm id be at, at around 60 mph?? i have a 700r4 with od