FJ40 Parking Brake Options

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woytovich

woytovich

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I searched the tech forum and found bits of info here and there. I am hoping to summarize here.

(Note: this all comes because I am putting an H55F into my 1978 FJ40 (no rear axle PB) and I want to make an intelligent choice regarding my transfer case/parking brake needs. I have access to a split TC with a PB attached. I can source a TC without a PB easily.)

The options for a parking brake on an FJ40 are:
1. OEM transfer case mounted on one-piece TCs
2. OEM transfer case mounted on some Split TCs
3. OEM Rear axle mounted on later FJ40s
4. SOR/MAF (or other) kit to add PB to a non-PB transfer case
5. Rear disc brake conversion that includes a PB
6. More esoteric solutions like line locks, driveline disc brakes...

Is there anything else?

-----------------

Here are the "issues" as I see them:

The TC mounted options shorten your rear driveshaft.

Axle mounted OEM would require cable/lever mods on a 40 that didn't have that stock. Would "give back" 2-3" of rear driveshaft length.

RDB conversion will require cable/lever mods as above but gets you disc brakes in addition to the PBand extra DS length.

Is there anything else?

-------------------

It seems to me that sourcing a late model rear axle with parking brake might be the "best" solution to maximize rear DS length and minimize cost and mod work.

Thoughts?


.
 
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It seems to me that sourcing a late model rear axle with parking brake might be the "best" solution to maximize rear DS length and minimize cost and mod work.
Click to expand...

That would be my personal preference. And close second between stock drum transfer PB or line lock. I don't have any experience with the line lock, but I have been contemplating it. I'm shopping for an e-brake myself....I have nothing at the moment.:frown:

I would recommend steering clear of the MAF disc, based on my experience.......You can have mine, if you'd like to try it! :D
 
1973Guppie said:
I would think another option would be a custom setup from someone like high angle driveline, I think Jesse can make a custom rear driveshaft parking brake setup now, or at least I heard that.....

Noah
Click to expand...
Added to the "esoteric" options... I'm somewhat leery of custom solutions 'cause they often require custom replacement parts.
 
Lil'John said:
Another super esoteric option that I am pursuing
Click to expand...

I had a line on a pair of locked 80 axles complete at one time for $1000. I looked into exactly this...

$200 to narrow the axles each... then CUSTOM axles shafts... I'd be buying 2 of each (4 at $150 each) cause ya gotta have a spare right...

Seemed more trouble than it's worth...
 
How about doing a rear disc vonversion , but using 79-85 mini rotors and 79-81 supra calipers ( rear calipers). These calipers are set up with cable e-brake application like the minis.
All that will be needed is to make the brackets to mount the calipers and adapting the e-brake stuff from the mini.
 
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Vicm said:
How about doing a rear disc vonversion , but using 79-85 mini rotors and 79-81 supra calipers ( rear calipers). These calipers are set up with cable e-brake application like the minis.
All that will be needed is to make the brackets to mount the calipers and adapting the e-brake stuff from the mini.
Click to expand...

A little too custom for my tastes... not out of the question though. I'd need to learn more about this mod... is there info you can point me at?
 
woytovich said:
A little too custom for my tastes... not out of the question though. I'd need to learn more about this mod... is there info you can point me at?
Click to expand...
Unforunately , I don't have much info about the supra calipers,
Last summer I was doing RDB convesion on a SF rear axle from a 78 fj40 , my friend wanted RDB converion done on his 89 mini , so we started looking for options and remembering the FF conversion offered by FROR which uses the Supra calipers , I was going do his mini conversion using the Supra calipers to solve the problem with the e-brake. I tried all part stores within 200 km from me , but I couldn't get the supra calipers. So we used fj40 calipers and rotors for the the 40 convesion and the (79-85) mini rotors and calipers for the mini convesion.
I know they will work with e-brake that uses cable on the rear axle, but I don't have first hand exp with them to give you anymore usefull info.
As far as mounting the mini rotors the rear axle , that would be done in the same way as mounting the rotors in the later fj40 front hubs. The rotors would be pressed to the back of the axle flange with studs from (79-85) mini or post 79 fj40.
Then a bracket would have to be made to install the supra calipers on the housings.
As far as hooking the e-brake cables to the calipers , it is strainght forward as I have seen on some writeups about the FROR ff conversion.
 
question what are the actual parts needed to put the t-case drum brake on the rear of the split case .
is it just the bearing retainer, backing plate and the drum and the standard e-brake stuff found here .or do you need a complete kit? i found the drum e-brake stuff for a split case on a fj60

backing plate #46503-60020
bearing retainer #36132-60030
drum #46501-60030 or 46501-60031

probably all discontinued items .found for Japan or Venezuela spec

might be worth a try
 
bumping this thread up to the top. I put an h55f in a few years ago with my diesel swap and recently installed a late model (parking brake) equipped full float cable locked (40 width) axle. has anyone made a cable that attaches late model 40 axle to the under dash lever? I have the cable that came with the axle and even have a 60 floor mounted lever but I really want to utilize the original under dash lever.
 
The under-dash lever may not have the leverage necessary to work with the rear e-brakes.

Even though there are two brakes at the two wheels, the t-case brake is geared 4:1 or so, so it has the potential to be twice as strong with half the cable tension.
 
Fast Eddy said:
The under-dash lever may not have the leverage necessary to work with the rear e-brakes.

Even though there are two brakes at the two wheels, the t-case brake is geared 4:1 or so, so it has the potential to be twice as strong with half the cable tension.
Click to expand...

Yeah so ive heard. I still want to try it. Alot of early toyota pick ups had the under dash lever with the wheel mounted brakes granted, some of those had a small pulley built in I assume to increase leverage.
 
Tools-R-Us has done this at least once. Made a lever where two cables came together to get the leverage needed. Thought about doing this on my 45 pickup since I have a couple 4X series rear with the hand brake. Mine pickup is a 65 and has the hand brake handle under the dash. On all my searching I found a RHD in at least one market that had the rear axle hand brakes. That would reach to the transmission cover. The most common setup on long wheel base 4X series is on the back of the transfer case whether one piece T case or split T case. From 8/80 almost all long wheel base 4X series in the Australian market had the T case mounted hand brake and full floating rear axle with backing plate pattern that matches the 60 series. I know the 40 series H55F are life hens teeth to find in Australia members I've talked to say the pickups/utes/troopies came still be found parked and rotting away. These were also H41 transmissions. Just to bad these will end up just rusting away instead of making their way across the pond and sold for a descent price. SOR use to import these while Marv was still alive. The price for a H41/split case/hand brake is more then most have funds for in their project. They use to strip the full floating rear axle of just the third, now they take the brake parts off as well. But because the 8/80 and later most likely didn't have the hand brake this isn't as big a deal since 60 series brake parts will bolt up. Haven't checked in a while but they have been out of stock for a while. Because of the extra length of the hand brake on a 40 series the rear full floater was a good option. Probably why those are out of stock. If I was thinking of going this route I would check into the parking brake cable if I had the floor mounted handle. While on a FJ40 this is almost a direct bolt in as time goes by fewer and fewer parts are available. When I bought my pickup SOR still listed the tailgate 4X4 emblem as still available for $10 in their catalog. Called right after buying the truck only to hear NLA. I did buy every FJ45L-B that was still available many of which are NLA now. My advise is if you see a part you think you might need to buy instead of figuring on buying it when you going to want it. If you follow the 40 series market you know parts are getting harder to find and prices are continuing to go up.
 
Watching this thread. My 40 is on 60 axles and I have the 60 parking brake in a box waiting. Just started looking for a good place to put the brake...
 
I will add myself to the list of interested parties.
Just acquired a BJ42 and I will be replacing the rear end with one out of an FJ45. Main reason is because I want to put in the new electric locker from Terrain Tamer.
Eventually I will conver to rear disks as well. For now I need an e-brake solution that isn't too convoluted.
So the backing plate and drum from the FJ40 semi-float will not fit (in any way shape or form) on the 45, correct?
Also when adding a 45 axle to a 40, is there anything that needs to be done to the brake master since the 45 brakes are a bit bigger?
 
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