what gearing should i go with?

[Jthomas]

got my 88 k5
adding:
10/14bolt  axles
built BBC
(40'' currently) could go to 42''
th400
(208 tcase currently)

i do drive this truck daily, but id like the touque.

[OHEARN.2012]

4.10s or 4.56??

[Blazin40s]

Get rid of the 10bolt and get a d60, and try to find one witth 4.56 if u have 40s and street it.  I have 4.10s and 40s and snapped my 10bolt every trip out.  But the 40s, and 4:10s are good on the road, but I have overdrive too.  With overdrive, I wouldn't personally go over 4.88.  With only a 3speed u may wanna keep 4.10, or 4.56 max

[Jthomas]

i was thinking 4.56

but i wanted to keep front ground clearance with the 10 bolt. but yes, i have broken my fair share of axles. id like to get a set of 14bolts FF

[Jthomas]

i do have a good set of 10 bolts if anyone wants to trade? i was told that they were dana 44s, but i could not find the tag to prove so

[the harvester]

i was thinking 4.56

but i wanted to keep front ground clearance with the 10 bolt. but yes, i have broken my fair share of axles. id like to get a set of 14bolts FF

stupid ? why do you want a set of 14 bolts when you only need one rear. just something to think about i tried going your route before and broke the front all the time. i would save your money and get a 60

[Blazin40s]

No such thing as a set of 14bolts.  14boltff is a REAR axle.

[betterbeaters]

No such thing as a set of 14bolts.  14boltff is a REAR axle.

x2 unless you make one     I would go 4.56s!  but if you dd/ play with it your going to get sick of that 10 bolt fast! bog saterday fix sunday hope to get to work monday dont sound like fun to me lol

[Blazin40s]

X2.  Gotta be tough if u wanna drive it home from the bog

No such thing as a set of 14bolts.  14boltff is a REAR axle.

x2 unless you make one     I would go 4.56s!  but if you dd/ play with it your going to get sick of that 10 bolt fast! bog saterday fix sunday hope to get to work monday dont sound like fun to me lol

[Jthomas]

No such thing as a set of 14bolts.  14boltff is a REAR axle.

you know what i mean

[Jthomas]

what im getting at is just 1 ton axles

[Jthomas]

and does anyone have axles they are looking to get rid of?

[betterbeaters]

just sold a set of 4.56 one tons... I got the 4.10 set in my truck but dont really wanna sell them but if I did I would have to get $1600

[Jthomas]

if i go to the scrap yard and get axles, how can i tell the gearing?

and what vehicals had 60s in them that would fit my 88' with minor modifications.

[Blazin40s]

Good luck finding one ton fronts at the scrap yard.  Don't happen too often.  You'll want chevy or older dodge axles.  Both will "bolt"in, but the chevy will bolt in easier

[Jthomas]

Good luck finding one ton fronts at the scrap yard.  Don't happen too often.  You'll want chevy or older dodge axles.  Both will "bolt"in, but the chevy will bolt in easier

i know just the yard. its one of the biggest iver ever seen. he has everything. is there a difference between dodge and chevy axles?

[Blazin40s]

Spring perchs are 1/2 inch off on each side..  but u can streatch everything over to bolt em in.  But I think steering may be diff, not sure

[jbexc]

A good gear ratio formula is tire diameter x .12 (40x.12=4.80).So a 4.88 gear

[Jthomas]

A good gear ratio formula is tire diameter x .12 (40x.12=4.80).So a 4.88 gear

what is the .12?

[Jthomas]

and where did the formula come from?