Ive been doin a bunch of searchin but havent found what im lookin fer, i want to know how well a 10b front and 12bolt rear would hold up in a yota with a 350?, nothing in the search gives info on this, its all crap, i want to know if anyone is runnin this setup and if it has held up. And if new gears and axleshafts would help or be a waste of cash?

i have no personal experience with either. but am considering putting a 12 bolt in the rear of my toyota that has a 350, cause it's free and i'm looking for a wider 6-lug axle to match my d44 front.

the 12 bolt in the rear would likely hold up ok, c-clips are the big downer about 12 bolts. c-clip eliminator kits are available but i've read that they leak when used in off-road applications since it wasn't really designed to have the axle at such an angle to where gear oil running out the end of the axle tube would be an issue.

from what i can gather, the 10 bolt front is somewhat less desirable than a D44 though it uses some of the same parts as a D44.

hope this helps some.

- jack

the only pisser to teh rear 12bolt is the c-clip's, it's 30 spline, same size ring gear as a D44 (not interchangable) and has a decent seection of lockers, Phil Linker on the board here run's a 12blt rear with a warn full floater kit on it, pretty sweet if you ask me (IMHO)

now the 10 bolt front is an 8.5 ring gear, the D44 is a 8 3/4in ring gear, not a huge difference, only downfall is the 10b is a 28spline, but that's upgradable very easily.. all you need is a locker for an 89 or newer GM 1/2 ton rearend, in 88 GM went to 30sp in teh 10b's and if you narrow it at all custom shaft's are required so you have D44 30sp shaft's, all the outer's and u-joint's are the same, just a 1/4in smaller ring gear... oh, and no flat top's factory EVER!

Chevy put the 12/10 bolt in the blazer for years with the 350. Seems like a good hint that it'll work for you...

What size tires? A D44 front is no stronger than a 10 bolt front and vice versa

Originally posted by DSI

now the 10 bolt front is an 8.5 ring gear, the D44 is a 8 3/4in ring gear

a d44 has a 8.5 in ring gear ;)

- jack

Originally posted by chrisd
What size tires? A D44 front is no stronger than a 10 bolt front and vice versa 38's but no rocks, mostly mud, now im gonna get flamed for sure :D

a 10 and 12 bolt should serve you well then. if the price is right i'd say go for it ... granted you haven't told us anything about the running gear you presently have.

- jack

right now its yotas with 4.10 , the 10 and 12 have 3.07 so i think i will get new gears for those, and would a new gear set add a little strength too??

generally speaking, the higher numerically a gear set gets the weaker it is. ie. 4.10's would be stronger than 4.88's etc ... so, adding a different gear set isn't going to make them any stronger.

unless you're currently having problems with the toy axles you've got i'd just keep running them. they'll hold up to the 350 in mud pretty good i'd imagine, unless you're doing redline clutch dumps on them. the 10 and 12 bolt will be wider for you though.

- jack

Originally posted by ppillard
Chevy put the 12/10 bolt in the blazer for years with the 350. Seems like a good hint that it'll work for you...


actually, the 10/12 bolt combo was only used from 78-81 and some 78s had a d44 front

but a new set of 4.10's should be stronger than an old set right??
and the reason im doin the swap is for da width, cuz right now the wind could roll my truck:nuke:

Originally posted by fender



actually, the 10/12 bolt combo was only used from 78-81 and some 78s had a d44 front

You got it! 78-81= years! :D I pulled a d44 from a '76 too. It's what's in my zook, along with it's corp 12 counterpart. I've no clue what all years they put the d44 in tho...Not that it matters. The d44 and corp10 are supposed to be equal in strength (and all other aspects as well. The point is that if a blazer (which probably weighs twice a 'yota) can effectively sport these axles, then they're likely overkill for the 'yota, even with a 350.


I dig overkill!:p

I'm runnin' a 12-bolt with 35" Boggers behind a SB400 on about a 3500-4000 lb. vehicle with no breakage yet. Hint for ya---both shafts are the same length. It would be wise to drop $50 on a spare at the junkyard. Otherwise, your walkin' home if you lose a shaft.

I dont think the 10 bolt is any improvement in strength over the Toyota stuff. Having run both Toyota and 10 bolts, I can tell ya 10 bolts will eat u joints and front axles like popcorn. the 8" toy rear has held up well to V8 use .

Originally posted by zags
I dont think the 10 bolt is any improvement in strength over the Toyota stuff. Having run both Toyota and 10 bolts, I can tell ya 10 bolts will eat u joints and front axles like popcorn. the 8" toy rear has held up well to V8 use . but the 10bolt is at least equal in stength to a 8"front. cuz the 12bolt sounds like it will be good for the rear, and since im gettin a good deal on these it wouldnt be a totaly stupid swap?

Originally posted by MOFUGRA
but the 10bolt is at least equal in stength to a 8"front. cuz the 12bolt sounds like it will be good for the rear, and since im gettin a good deal on these it wouldnt be a totaly stupid swap?

Aren't they quite a bit wider than your yota's? That would give give you a bit more stability and lower your center of gravity. You'd lose a little in the tree huggin', but it's a noble sacrifice. This would help to qualify this as an un-stupid swap. Not to mention that broken u-joint are cheaper to swap out than birfs (wasn't that already mentioned?).

Originally posted by MOFUGRA
but the 10bolt is at least equal in stength to a 8"front. cuz the 12bolt sounds like it will be good for the rear, and since im gettin a good deal on these it wouldnt be a totaly stupid swap?

The only advantage to this swap in my opinion is the extra width if you feel you need. it. The time and expense of all the work to install them arent worth the marginal improvemnt in strength.