1985 BJ 60 Trans in 1980 BJ40

[Spore]

I should also add that it is very useful to obtain the exact date of manufacture from the vehicle - '85, as I found out, was a pivotal year for the h55f and there are multiple rebuild kit choices (mostly differences in bearings). Handy to know if you ever have to service the tranny. Would have been a hassle for me if I did not have a friend with a tranny shop.

I should also point out that with the conversion mentioned above in my previous response, I used the transfer that came with the 5sp.

Cheers!

[seapotato]

not trying to pick holes in your wisdom....but....

my 85 bj60 didn't have a vacc shifter, so there may be a cutoff date within 1985 to be aware of for that...

the hollow tube shifter is actually quite nice to have, mainly for aesthetics, as it kinda looks all modern like...tho I guess in theory the purpose is to eliminate some vibration from your hand, and they're just as easy as a solid shifter to bend...you just have to bend it below the joint, and all is good.

but getting a 3b with the 5 speed behind it may not be a bad plan, from what I remember of my poor old B diesel, the 5th gear wouldn't have done me much good except downhill....

Originally Posted by lowenbrau

OK, you seem pretty committed to putting a five speed into this rig in spite of the challenges... cool

Your best option is to sell it and by an 83 -84 BJ42

Next best, buy and 81-82 BJ42 and do the 5 speed swap. It already has brakes on the wheels, and under the trans crossmember, and a splitcase.

Both above options would get you a 3B diesel rather than your B and that would help get you into a power range where you'd actually use fifth.

Worst option, keep your BJ40 and put a five speed into it.


You can't use the t-case from the '85 BJ60 as has been said before. Find one from a '83 or '84 BJ60 as has been said before or an 1985 BJ70 (will have wrong flanges) as has been said before. Get the parking drum for a split case or swap out your rear axle housing for one from an '82-84 FJ40 or BJ42. ( I think this was said before) Probably even a BJ70 would work.

New info, your clutch is not quite the same as later versions but will likely work. If you get the one from the new tranny and its any good, use it. Be sure to get the throw out bearing retainer and clutch fork with the new tranny and if you get the bellhousing and clutch slave at the same time you'll be assured that you have what you need and can mix and match with your old stuff. Order a new clutch disc from the dealer. You'll end up with a spot for a tach sender as well and then you'll be able to see that you weren't actually revving that high in the first place.

See if you can get the t-case linkages from the donor t-case. I cant remember when Toyota went to the shifter-in-a-shifter for the transmission. Probably 85. It was basically a hollow shell over the shifter shaft with rubber poured in the middle. You won't have any luck bending it. You need a solid one from and earlier truck.