How low can you go...

[blazen91]

How low can you go on the gearing in a set of 10b. I know you guys don't like 10b's, but they are not going in a Blazer. They will be in a light weight truck that will be just fine!! So, how low of gears can I go? /forums/images/graemlins/dunno.gif

 

[dremu]

Not to downtalk the idea, but as a general warning... usually the (numerically) higher gear ratios are weaker than a (numerically) lower gear ratio for the same diff. Something about more teeth makes the metal thinner or something.

(Is that last statement technical and specific? /forums/images/graemlins/histerical.gif)

-- A

 

[CyberSniper]

It seems at 4.88s you have just as good of chance of spitting teeth off the ring gear as you do breaking a stock necked-down axleshaft. It makes sense since 4.56s is as low as you can go so you'll have a full tooth of contact between the ring and pinion. 4.56s is as low as I'll go and I'm a "10 bolt believer".

You can buy gearsets as low as 5.38s, or at least that's as low as I've seen a vehicle with. It was an S10 cab sitting on a tube chassis.

How light is light? I could probably be persuaded to use 4.88s if the weight was below 3,000lbs.

 

[blazen91]

I sold a 91 Nissan about 3 yrs ago, and now I am buying it back. I have a set of 30 spline axles and a 241 laying around, so my son is going to get a 4x4 Nissan with full size Chevy axles under it. So in answer, less than 3000# I would think. I guess I should figure craw ratio. I will go do that now. I am thinking of running those 34x10.5x15 LTB Swampers.

 

[blazen91]

44:1 crawl with a np241, 4.56 and 34" tires on a standard trans and a 4 cylinder.

Maybe I should go 4.88?

 

[84_Chevy_K10]

I would go lower than that.