Toyota electric lockers In BJ70 axles

[mk1pickle]

is there a possibillity of fitting electric lockers into the BJ70 axles.. the cable lockers are expensive and teh lockrite locks too much of the time.. also arb air lockers are expensive.. i know on my brothers 4runner you can get newer runner electric lockers and put them in with some mods, is this so with the bj70 axles?

jon

 

[lumpy70]

the r & p from the 4runner is a different size than the LC. However, you can get 80 series 4.11's with electric lockers in a complete pumpkin for about $1100 Cdn I believe.

HTH,
Craig.

 

[rick_d]

to clarify,

yes, you can install e-lockers in a BJ70.

you will need:
full float rear axle hub to hub
pass side (right) rear locker axle shaft (40/60/70, NOT 80)
front left side locker axle shaft (40/70 NOT 60 or 80 series)
two rear 80 series elocker diffs
$50 in hardware (longer studs, gaskets).
12v brain, or very hard to find 24v brain (aka computer). you can run relays if you get excited and skip this step.

all new, you will have more than $4,000 US in them.
used, closer to $2,500 US
ARB's are certainly cheaper, cable lockers more effective (full proof)

 

[mk1pickle]

thanks.

 

[Tapage]

to clarify,

pass side (right) rear locker axle shaft (40/60/70, NOT 80)
front left side locker axle shaft (40/70 NOT 60 or 80 series)

you can clarifý a little more in this part .. ?

Why not 80 series in the rear locker axle shaft .. a non diff axle shaft function . ?

 

[lowenbrau]

How long is the long shaft in the front of an 80? The rear long side is the same as ( or very close to ) a 40 series.

 

[tlcruiserman]

The later years on the 7x series they offered e-lockers PZJ77 and HJZ77 these axle are available in the aftermarket places for under $1000 each. They are high pinion 8" R&P axles here is a pictures of a few I have:

http://westcoastcruisers.org/WCCT_7xfrontelocker.html


Cheers,

Michael

 

[rick_d]

1975-1980 rear short side axles for FF are +/- cm off a 1981-1990 axle.

Full Floater short sides are common to all J40/2's, J55's, J70's, and J60's. 80 series are not the correct length. I am not sure on the new 5 lug J70 rear ends...

Front axles inner shafts are the same 1968-1990 (w/ 9.5" ring gear) for J40/55 and J70 series. J60 short side (right front) are the same as J40/55/70. J60 long side are same as mini truck to 1985 in US. post 1990 8" ring gear J70 axles are a non fit.

thence:
cable locker axles for J60/J70 rear full float will fit a J40 FF rear end post 1980, and with outer seal modification early "3 nut" FF (those used cdn spec J45's).

front cable locker inner axle for J70 (long side, left front) will fit J40/45/55 front birfield axles.

have fun, it's not the cheapest way to go.....

 

[lowenbrau]

So I hauled out some FF axles that I have in the shop and compared. The Long side 45 and 80 are within a 1/4" of each other. It stands to reason that an 80 series long side front ( the side that will have the long splines for the locker) should work in a 40/70 series housing. I don't have the axles here to compare though. Anyone have a measurement?

Also, did the mini trucks ever have lockers in the solid front axles? I need a 60 series long side long spline axle to run my 80 series locker in the 60 housing of my BJ70. (Confused yet?)

From the top are..

70 series short side, long spline
45 series short side, reg spline
80 series short side, long spline
80 series long side, reg spline
45 series long side, reg spine

 

[denis]

Front axles inner shafts are the same 1968-1990 (w/ 9.5" ring gear) for J40/55 and J70 series.

post 1990 8" ring gear J70 axles are a non fit.

for the record, early 8" shafts are a different length as well. (shorter short and longer long IIRC)

 

[lowenbrau]

for the record, early 8" shafts are a different length as well. (shorter short and longer long IIRC)

Do you figure the "longer long" is as long as a 60? That'd help my cause.

 

[denis]

Also, did the mini trucks ever have lockers in the solid front axles? I need a 60 series long side long spline axle to run my 80 series locker in the 60 housing of my BJ70. (Confused yet?)

Didn't all the smaller 8" diffs. use the slightly different style locker that doesn't require the longer splines ?

 

[denis]

Do you figure the "longer long" is as long as a 60? That'd help my cause.

I'm pretty sure ts just inbetween 40 and 60 series length. I once had all of them on the same shelf

 

[lowenbrau]

Didn't all the smaller 8" diffs. use the slightly different style locker that doesn't require the longer splines ?

The Hilux/Surf/Prado maybe but not the 8" in the 80 series. My knowledge mostly revolves around Cruisers produced between '1975 and 1990 so I'm guessing at anything other than 40,55,60, and 70 seris stuff.

 

[denis]

The locking 80 8" I have on the bench is the style that doesn't need the longer splines

 

[rick_d]

unless you are prepared to make an 80 series big birfield magically fit in any small birfield axle end, abandon the conversion.

bobby long makes an inner cage system for 80 spline-small super birfields, but just buy those axles and be done.

front, short side 8" US style live axle shafts have little value for E-1990 cruiser owners. I've tossed them in the dump as they are the wrong length.

bruce, check the seal dimensions on the 45 axles vs the others. it's bigger....

 

[lowenbrau]

bobby long makes an inner cage system for 80 spline-small super birfields, but just buy those axles and be done.

.

Yep, right. That sounds like the best plan.

 

[beanz2]

Wowww, I'm super confused now ...

rick, why would anyone need a "an inner cage system for 80 spline-small super birfields"? To run Bobby Long's 30 spline Longfield in an 80 axle? He makes 4340 80 birfields too, doesn't he?

There is talk about using 80 series knuckles grafted on to a 40/60/75 center. You need Heavy Duty 78/79 series inner axles to make the big 80/78/105 birfs work with 9" diffs. Not talking about Light Duty 78 here!

Bruce, the 45 FF axle shaft in the picture is from an early 75-80 axle, isn't it? 81 and later are the same length as a 60/70

Dave

 

[rick_d]

Bobby Long stuff
------------------------------------------------------------------------------

first, this is not an 80 series thread, so I will not speak to 80 series size birfields, 80 axle shafts, 80 anything anymore, done, drop it...

don't care about mini truck stuff, 8", tiny, good for nothing, same goes there
---------------------------------------------------------------------------------

traditional 1968-1990 US & CDN market land cruisers use 27 spline inner axles at the point of attachment to the cage in the front axles. Bobby Long has 30 spline unit (go, look, at, his, site!!) which have better strength than OEM. he makes a birfield to match this.

original question
BJ70 axles yes or no to elockers
answer: the front axle tube can be made to accept a factory elocker. they may be more expensive than quoted at $1,100 canadian dollars. you will need the diff carrier assembly and a long side (the left) cable lock 70 series inner axle to fit.

the rear semi floater, canadian spec BJ70 axle tube cannot without extensive modification, person cost, personal liability, hardship, hairloss, greying of hair, and time be made to fit an elocker. the costs would exceed ten fold the costs of buying a 70 series full floating axle tube. you will need the diff carrier and a short side axle made for toyota locking diffs.


I am never opening nor reading this thread again and will mail the leftover grease and tires from any project to persons who continue to ask questions on this axle swap, via phone, fax, email, or smoke signal.

do call us, we shall call you.

 

[lowenbrau]

I am never opening nor reading this thread again and will mail the leftover grease and tires from any project to persons who continue to ask questions on this axle swap, via phone, fax, email, or smoke signal.

do call us, we shall call you.

Nice