Builds Old Landy: An HJ45 Story/Build Thread (2 Viewers)

[ceylonfj40nut]

Love this thread. Not much rust in my view btw (and CA and AZ guys normally freak out at any indication of rust). I would shoot a rust converter on it for the time being. Nice platform for your project!!

Yep that is the plan. Need to get the scoop on his from @wngrog.

 

[CaptClose]

Great discussion. @Cowboy45 who is 13 is getting diverse thoughts here which is something I advocate to him. I have asked @Cowboy45 to do some homework on this. First:

1) determine rotor size, caliper size, and brake pad size for fj40 disc, Stock OEM.

2) determine same attributes as 1) above but for a ‘95 4runner disc brake system

Then compare to see impact of 4runner caliper only on stock 40 disc vs 4runner caliper and rotor change together.

I consider myself a pretty good friend of CD’s. He’s very knowledgeable, but like all of us, he doesn’t know everything.

One thing I’ve noticed about him is that if I ever ask him a question that he doesn’t know, he will research it thoroughly. He will usually have a well educated answer accompanied by all the relevant threads, articles, web pages, etc.... usually within 24-hours of me asking the question. It’s anazing the way his engineering mind works.

I’m glad to see that he is indoctrinating both Liam and Keaton with this same mindset. I’m anxious to see what @Cowboy45 comes up with.

 

[wngrog]

Yep that is the plan. Need to get the scoop on his from @wngrog.

I’ve typed up my formula in so many places I’m gonna just make a thread on it so I can link it. Stand by. I’ll do it soon.

 

[ceylonfj40nut]

I’ve typed up my formula in so many places I’m gonna just make a thread on it so I can link it. Stand by. I’ll do it soon.

Thanks @wngrog should be a sticky for sure.

 

[FJACS]

Any response from the PO through Facebook?

 

[Cowboy45]

Any response from the PO through Facebook?

No nothing yet! I am kind of bummed he hasn’t answered, but I will remain to be optimistic.

 

[SKULLYOTA]

Very cool history, I only hope my two little ones become competent gear heads when they get older too!

 

[ceylonfj40nut]

Very cool history, I only hope my two little ones become competent gear heads when they get older too!

Making a connection of doing the right things to great rigs to take you to great places definitely helps.

 

[Cowboy45]

Pop and I have been discussing the disc brake conversion for Old Landy. We have come up with 2 main points…


For starters rotor diameters and pads…

• We know that the diameter of the 60 rotor is bigger than the diameter of a 40 rotor, but is the diameter of a 4Runner rotor bigger or smaller than the the diameter of a 60 rotor?
  
  
• We think the best caliper for any of these rotors are the 4Runner calipers due to bigger pads and more pushing force from larger pistons/more stopping power. See article on piston size and caliper size

Rotor, caliper, spindle, knuckle combos…


What works….

• 40 knuckle, 40 spindle, 40 rotor, 4Runner caliper
  
  
• 40 knuckle, 40 spindle, 60 rotor, 4Runner caliper
  
  
• 40 knuckle, 60 spindle, 60 rotor, 4Runner caliper
  
  
• 60 knuckle, 60 spindle, 60 rotor, 4Runner caliper

What we may want is:

• 40 knuckle, 40 spindle, 4Runner rotor, 4Runner caliper (Only if it can work and if 4Runner rotor is bigger than 60 rotor.)

Here are our notes we took…

 

[POTATO LAUNCHER]

One other calculation is where on the radius does the caliper mount. Does the 40-60-4Runner backing plate caliper mount locate the caliper for proper pad engagement? Look at keeping calipers and rotors from the same make together or plan on fabricating some way to mount them. If it is too shallow/ short your caliper will rub the outer diameter of the rotor. If too deep/ extended out the clamp will not be efficient and lead to early failure.
One more piece of the puzzle Keaton to consider my friend. Keep up the good work man.

 

[Cowboy45]

One other calculation is where on the radius does the caliper mount. Does the 40-60-4Runner backing plate caliper mount locate the caliper for proper pad engagement? Look at keeping calipers and rotors from the same make together or plan on fabricating some way to mount them. If it is too shallow/ short your caliper will rub the outer diameter of the rotor. If too deep/ extended out the clamp will not be efficient and lead to early failure. One more piece of the puzzle Keaton to consider my friend. Keep up the good work man.

So what your saying is to use the same mounting bracket, rotor, and caliper for what ever model disc brake we decide on doing. Because if the bracket, rotor, or caliper are all from different models your caliper could be in bad place on the disc. In the case of using all different components then we should fabricate our own mounting bracket. I have read that many have switched to 4Runner/mini truck caliper with 60 vented discs, but they never talk about 4Runner brackets, 4Runner rotors, and 4Runner calipers being used in this process as a combination, or the mounting brackets at all. So I don't know if keeping it all the same is an option. I will read more on it and see. Thanks for the advice.

-Keaton D.​

 

[4Cruisers]

On my '71 FJ40 conversion I used mini-truck knuckles and spindles, FJ60 vented rotors, and early '90s 4-Runner calipers (from a '91 IIRC).

 

[cruisermatt]

The 60/40/4Runner caliper mounts should all be the same. The 40/60 spindles are functionally the same as well. I think you’ll have issues running the 4Runner rotor without the associated hub.

 

[ceylonfj40nut]

The 60/40/4Runner caliper mounts should all be the same. The 40/60 spindles are functionally the same as well. I think you’ll have issues running the 4Runner rotor without the associated hub.

Thanks @cruisermatt. I figured the 4runner rotors will be an issue like you state.

 

[Cowboy45]

Oh my gosh!!!! Andres just responded to the PM and he gave us his personal email and skype adress!! We will contact him and see what happens!!!

 

[Rooster47]

This is gonna be awesome! Excited to see how this goes. Consider recording it, if he's willing.

 

[ceylonfj40nut]

At work. Seeing this. Mind blowing. Can’t wait to get home and get the scoop!!!

 

[Cowboy45]

This is gonna be awesome! Excited to see how this goes. Consider recording it, if he's willing.

Sorry we could not record the message, but we did talk to him about all his adventures. I am speechless!!

 

[Cowboy45]

Sorry that last post was kind of spastic, but I was completely flabbergasted, I feel like there was no emotion to describe what I felt!!! Also, it turns out that my mom did record one I will post it here in a second. I just spoke to a legend!

 

[POTATO LAUNCHER]

Living history about your Cruiser Keaton.
Priceless to say the least.