axle strength

[sixstringsteve]

the entire thirds are interchangeable, but the gears are not. The gears are 4cyl and 6 cyl specific.

 

[sLcREX]

Ok, I was asking about switching out the third housing only, because the 4cyl one is re'geared I believe for 4.88 so I would want to maintain the gearing.

 

[gijohn40]

this thread is Toyota biased....

 

[iamsparticus]

this thread is Toyota biased....

And your point is?

 

[OrvisKrawler]

the V6 third is a 4 pinion carrier like a 14bolt and the 4cyl is a 2 pinion

Whaaaaaat? Ive never seen an axle that has 4 pinions or even 2! how does that work?

 

[iamsparticus]

Id dont know sean use your imagination. The 2 pinion is one pin through the carrier and the 4 pinion looks like a small circle with 4 pins coming out

 

[OrvisKrawler]

Id dont know sean use your imagination. The 2 pinion is one pin through the carrier and the 4 pinion looks like a small circle with 4 pins coming out

You do know what a pinion is? its the thing with teeth that meshes with the ring gear... and there has only ever been one on all the axles ive seen

 

[iamsparticus]

right i do know what a pinion is but that is what toyota thirds on everything i have read call them 4 or 2 pinions so i was carring on the same term, i guess if you like you can call them 4 or 2 pin carriers but either way the description above tells you what each is and it doesnt change anything about the pinion gear that turns the ring gear. heres a link for you so you can increase your view of terms http://www.4x4wire.com/toyota/tech/lockright_locker/ read the first paragraph.

 

[I Lean]

Those 4cylinder gears can be set up in the V6 housing, by using the V6 bearings and carrier, and additional shimming.

 

[iamsparticus]

i lean do you know where you can get the shims for toyota thirds i thought about doing this with my 4 cyl third and swaping in a V6 one. Or are they just a general shim?

 

[I Lean]

They're just normal shims, but since you need to add almost 1/4" of them you can't do it all behind the outer race, you need to have at least some to go under the pinion head. The typical additoin is a couple really thick ones under the pinion head, then the rest under the outer race as normal.

I'm pretty sure I have them in my supply.

 

[sLcREX]

Hmm, I'll know more about what you guys are talking about when I actually take them apart. But it's a pretty straight forward process then, yeah?

 

[I Lean]

Straight forward yes...same process as setting up gears anyway. It's just more of a PIRA if you have only a standard setup kit.

 

[ozzy702]

Does anybody have any info on the tacoma rear axles w/out the e'locker, strengthwise? It has a 8.5" ring gear but are the shafts thicker than the 8"

I have one out in my shed, I'll go count the splines tomorrow.

The non - elocker, tacoma, T100 and early Tundra diff's are typically called 8.4" diffs but have the same basic 8" diameter ring gear. All toy rear axle shafts are similar in strength. The 8.4 has a much larger pinion shaft and head and they also have a carrier girdle that stiffens up the 3rd quite a bit albeit with the loss of easy adjustment since the carrier bearings take shims like a dana diff.

If properly setup the "8.4" is quite strong for it's size and tends to hold up a bit better than V6 toy diffs and significantly better than the 4cyl diffs.

I've been running a 4cyl diff up front and a V6 diff out back for roughly five years now. I have cromo shafts and run 39" pitbulls at the moment. The only carnage I've had so far was a stock birf when I had 37" MTR's which is when I upgraded to the cromo's.

For their size and weight toy diffs are extremely strong. Up to 37's they're very reliable if built correctly (gear setup and proper CBP is extremely important).

The main advantage of a toy diff over a D44 (other than ground clearance) is the ability to throw longfields or dirty 30's (cromo shafts) in. Even the upgraded D44 shafts and ujoints won't be as strong and have a tendency to break. Stock aisin hubs on a toyota are also significantly stronger than any hubs available for a D44.

If you want to run 39's or larger you really need to run at least an upgraded Ford 9" if not full on one tons. FYI stock 31 spline FF rear dana 60 shafts are actually weaker than the toy shafts so unless you plan on going cromo, carrying spares or upgraded to 35 spline, the toy stuff is still better quality.

Dana 60's and 14 Bolts are sweeeeet axles but not always the answer for someone with smaller tires and or a light rig.

Edit: here are a couple of websites on toy axles.

http://gearinstalls.com/ <--- TONS of info on setting up gears.

http://home.4x4wire.com/erik/diffs/

 

[Will3161]

six states is also a good place to get shims/crush sleeves and spacers for toy diffs

 

[RTR]

this thread is Toyota biased....

As long as this is the case, I'd like to pose the question:

Does anyone have any information on the '05+ Toy Tacoma TRD (w/ rear lockers) axles? All the links provided, thus far, don't seem to call out this vintage of tacoma. Or have the axles not changed from the previous generation? (This would seem unlikely to me.)

That being asked, are there any tips as to what can be done to beef it up?

 

[ozzy702]

As long as this is the case, I'd like to pose the question:

Does anyone have any information on the '05+ Toy Tacoma TRD (w/ rear lockers) axles? All the links provided, thus far, don't seem to call out this vintage of tacoma. Or have the axles not changed from the previous generation? (This would seem unlikely to me.)

That being asked, are there any tips as to what can be done to beef it up?

Should be the same e-locker V6 based diff with a wider housing but other than that not much different than pre 05' Taco rears.