BJ60 and BJ70 part compatibility

[David*BJ70]

Hello, in the manual of repair, all the parts seem the same ones, which are it really?



Disc rotor and brakes pads?
Caliper ?
Drum and brakes pads ?
Alternator ?
Shocks ?
Shackles and springs bushings ?
Wheels clearance ?
Damper shock ?
Brake master ?
Clutch ?
Clutch slave ?

and the biggest question... the T-Case ?

...and, what other part ?

Not a lot of strore (NAPA, Canadian Tire, ...) selling 70 part... so I need to figure if I can buy some parts for a 70 like a 60 ?

[wesintl]

Originally Posted by David*BJ60

Hello, in the manual of repair, all the parts seem the same ones, which are it really?



Disc rotor and brakes pads?
Caliper ?
Drum and brakes pads ?
Alternator ?
Shocks ?
Shackles and springs bushings ?
Wheels clearance ?
Damper shock ?
Brake master ?
Clutch ?
Clutch slave ?

and the biggest question... the T-Case ?

...and, what other part ?

Not a lot of strore (NAPA, Canadian Tire, ...) selling 70 part... so I need to figure if I can buy some parts for a 70 like a 60 ?

For the most part a bj60 and bj70 will have the same running gear except for axle shafts, drive shafts, body parts, etc. HJ60 would have much less in common with a 70 but brakes xfer depending on year, etc will still be the same.
I've seen 60 and 70 shocks listed as the same and then companys like OME will have different shocks listed due to load. But they are of the same fittings. Some items like a brake master for that will even cross over to a 4runner.

I believe all the items you have above are the same between a bj60 and bj70 of the same vintage.
HTH

[lowenbrau]

The list you have are interchangable with a few exceptions.

Watch the voltage. all cdn spec BJ60s are 12v. Only '85 BJ70s are 12V . '86 and '87 are 24V

Shackles and bushings are interchangable but the rear fixed pins are unique to the 70 series.

Clutch slave is the same as a '84 or '85 BJ60 or '86 or '87 HJ60 but not earlier. BJ70s have vacuum assist.

The t-case from a '83 or '84 BJ60 is the same as a '85 BJ70

The t-case in a '86 or '87 BJ70 is unique in Canada but can be replaced (downgraded) with one from an '83 or '84 BJ60.

The internals and back half of a '86 or '87 HJ60 case will be the same as a '86 or '87 BJ70

[David*BJ70]

I forgot this specification.

I have an extre T-Case from a BJ60 1982 (4 speeds) Can it fit in the 1985 BJ70 ?

And thank for the others informations

[lowenbrau]

Originally Posted by David*BJ60

I forgot this specification.

I have an extre T-Case from a BJ60 1982 (4 speeds) Can it fit in the 1985 BJ70 ?

And thank for the others informations

Yes

You have to use the front half from the 70 but if you swap the early gears (from the 60) into your case you'll have a lower low range.

[David*BJ70]

Originally Posted by lowenbrau

Yes

You have to use the front half from the 70 but if you swap the early gears (from the 60) into your case you'll have a lower low range.

... lower low range. How can I figure that... now I have 3.70 ... so can that could be something like 4.11 or 4.?? ... ??

[beanz2]

Originally Posted by David*BJ60

... lower low range. How can I figure that... now I have 3.70 ... so can that could be something like 4.11 or 4.?? ... ??

Bruce was talking about the transfer case gears. Yours is 1.99 low range, he was referring to the 2.29 ratio.

Supposedly there is a 6.1 R&P set that fits the cruiser diff. Off a Toyota Stout or something.

Dave

[David*BJ70]

Originally Posted by beanz2

Bruce was talking about the transfer case gears. Yours is 1.99 low range, he was referring to the 2.29 ratio.

Supposedly there is a 6.1 R&P set that fits the cruiser diff. Off a Toyota Stout or something.

Dave

I know he was talking about T-Case gears... but my question was not realy clear anyway. (You know... it's french in my head ! )I'm juste try to figure what this difference can make on my drive train.

So I will make my question different :

If I put the front half from a 1982 T-case in my actual 1985 T-case I will be able to put bigger (33-35) without stress my drive train... not like running 35 on a 3.70 ratio. Hope it's more clear now ...

(I don't realy whant to make this ... just for the information);

[beanz2]

I'm not really sure what the older front t-case half will do really. Nor would it help anything in high range. What's more, if your BJ70 is 10/85 or older, the idler shaft would be incompatible with the '82 front half. If you are running larger tires, you can consider running Marks4WD's 1.08/3.08 transfer gears, or cheaper, go for higher diff ratios.

Dave

[crushers]

actually the lower gears do make a big difference.
if you work out the numbers by switching the gears in the case you end up with the same result (in low range) as putting 4.88 gears in the 3rd member...
this does make turning 35" tires effortless when going down the trail...
on the highway it makes no difference at all since it is still 1-1 high...
from what i have seen of Marks gears, they scream like a banshee at highway speeds and unless you are into rock crawling they are over kill for the average trail....
cheers

[lumpy70]

Originally Posted by crushers

from what i have seen of Marks gears, they scream like a banshee at highway speeds...

From what I've heard, the 1st generation of Mark's gears were non-helical cut so it whined like you were going in reverse, except at 100 kph it's pretty loud.

However, now I've heard that they are making them in a helical cut gear so they are as quiet as any other gear....so I've heard.

I think Greg B has a set, maybe he could comment further on the noise level.

Craig.

[lowenbrau]

Originally Posted by beanz2

I'm not really sure what the older front t-case half will do really. Nor would it help anything in high range. What's more, if your BJ70 is 10/85 or older, the idler shaft would be incompatible with the '82 front half. If you are running larger tires, you can consider running Marks4WD's 1.08/3.08 transfer gears, or cheaper, go for higher diff ratios.

Dave

I think Dave meant 10/85 or *newer*

You don't want to use the four speed (82) front case half on the back of your five speed tranny.

Your '85 t-case front will mate up fine with the 82 gears and rear case half. Its a pretty easy job. I can't remember for sure but I think the companion flanges changed in that period so you'll have to swap the rear one from the old case if you use the rear t-case half. As Wayne said the differnence between 1.99 and 2.27 is significant.

[David*BJ70]

Originally Posted by lowenbrau

I think Dave meant 10/85 or *newer*

You don't want to use the four speed (82) front case half on the back of your five speed tranny.

Your '85 t-case front will mate up fine with the 82 gears and rear case half. Its a pretty easy job. I can't remember for sure but I think the companion flanges changed in that period so you'll have to swap the rear one from the old case if you use the rear t-case half. As Wayne said the differnence between 1.99 and 2.27 is significant.

OK thank. So it's a kind of a good thing ?! I will keep this precious information until the time of actual T-Case died.

[Greg_B]

Originally Posted by lumpy70

From what I've heard, the 1st generation of Mark's gears were non-helical cut so it whined like you were going in reverse, except at 100 kph it's pretty loud.

However, now I've heard that they are making them in a helical cut gear so they are as quiet as any other gear....so I've heard.

I think Greg B has a set, maybe he could comment further on the noise level.

Craig.

I believe I ended up with an older set. They have quieted down around town, however on the freeway they are noticable.

gb

[beanz2]

Originally Posted by lowenbrau

I think Dave meant 10/85 or *newer*

You don't want to use the four speed (82) front case half on the back of your five speed tranny.

Your '85 t-case front will mate up fine with the 82 gears and rear case half. Its a pretty easy job. I can't remember for sure but I think the companion flanges changed in that period so you'll have to swap the rear one from the old case if you use the rear t-case half. As Wayne said the differnence between 1.99 and 2.27 is significant.

Thanks for the correction, yes, I meant 10/85 and newer. But as I also said, the 2.29 low range gear would not "help anything in high range".

I have the 1.08/3.08 Marks4WD gears in my 40, the difference in high range is noticeable in the hills. Before I could not keep 55 mph in 5th gear going up certain hills around my house (NV4500, Chevy 350, 37"), now I can accelerate to 60-62 mph.

Dave

[David*BJ70]

Originally Posted by wesintl

Some items like a brake master for that will even cross over to a 4runner.
HTH

The BJ70 brake master are the same as the 4Runner ? I think my master slowly get worn...

What 4runner year ?

Is it the same part # at Toyota ? And NAPA ?

Thank for help.

Bye