Need brake booster advice for '72 FJ40

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fwiw I did the mini booster and it works fine just make sure you get the spacer and the check valve
i only cut off 1/4 inch of the shaft
 
Ok, it's official: my original 72 FJ40 Drum booster is dead. All 4 calipers started dragging quickly and almost caught on fire. Question is: which booster to use for 4 wheel discs and FJ60 master? I plan on ordering from my local Checker buddies who give great warranty service with no questios asked. Also, I vacume tested the booster with a no hose and clamps and got no vacume on the gauge. I want more powerful brakes. I've got 4 runner calipers front and Monte Carlos in the back. Stopping power was ok but not great with the original drum booster but barely acceptable. So, ideas on a great, simple replacement booster?
 
Hi All:

Get the 1989 V-6 4Runner/4wd mini-truck booster. It will fit-up to the firewall nicely.

I have '78-vintage TLC disc brakes up front and the typical "Monte Carlo" RDB out back. Booster is from a Toyota 4wd mini-truck, while the master cylinder is for a '89 V-6 4Runner. I also have the Wilwood adjustable proportioning valve installed in the rear brake circuit.

This hodge-podge works well. Eventually I will replace the front rotors with some new ones, and the calipers with the bigger 4Runner units. Oh, and I could have done a better job adjusting the proportioning valve for the rear Monte Carlo calipers (I can lock-up the rearend if I try!) :D

Good luck with your brake upgrade - it is well worth the effort!!
:beer::beer:

Regards,

Alan


Ok, it's official: my original 72 FJ40 Drum booster is dead. All 4 calipers started dragging quickly and almost caught on fire. Question is: which booster to use for 4 wheel discs and FJ60 master? I plan on ordering from my local Checker buddies who give great warranty service with no questios asked. Also, I vacume tested the booster with a no hose and clamps and got no vacume on the gauge. I want more powerful brakes. I've got 4 runner calipers front and Monte Carlos in the back. Stopping power was ok but not great with the original drum booster but barely acceptable. So, ideas on a great, simple replacement booster?
 
proportioning valve question

Hi All:

Get the 1989 V-6 4Runner/4wd mini-truck booster. It will fit-up to the firewall nicely.

I have '78-vintage TLC disc brakes up front and the typical "Monte Carlo" RDB out back. Booster is from a Toyota 4wd mini-truck, while the master cylinder is for a '89 V-6 4Runner. I also have the Wilwood adjustable proportioning valve installed in the rear brake circuit.

This hodge-podge works well. Eventually I will replace the front rotors with some new ones, and the calipers with the bigger 4Runner units. Oh, and I could have done a better job adjusting the proportioning valve for the rear Monte Carlo calipers (I can lock-up the rearend if I try!) :D

Good luck with your brake upgrade - it is well worth the effort!!
:beer::beer:

Regards,

Alan

Would the wilwood proportioning valve be needed if you retained the rear drum brakes, mini truck front disk brakes, 4-runner booster('89 v6 4x4) and fj60 master cylinder?
Thanks
Gary
 
maybe. if the front/rear brake bias is wrong, yes. if it is not, no. no one can answer this question but you once you put it all together.
 
Hey TCinVA,

What part numbers did you buy at Napa? I see they have different parts between the trucks and the 4runners. I have the same setup as you did (disc front drum rear). I am still trying to get my brakes right. Thanks. Oh yeah, mines a 73 FJ40.
 
Hey 1911, yeah, I have seen that one too. Thanks for the reply. Nobody says anything specific about a "mini truck" brake system. They just say it worked. I was trying to do what TCinVA did since this setup works fine in my 1998 Tacoma. I wonder if I should just buy the same parts I have in my Tacoma and try it in the FJ. I have discs in the front and drums in the rear.
 

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