Doner Vehicles for '74 FJ40 Brake booster

Joined
Nov 23, 2009
Messages
75
Location
Dallas, TX
Hey guys,
Are there any other common vehicles at the pick n pull yards that I could pull a brake booster from (Toyota or other wise)? I think my my vaccumbooster is bad. I plan to go to a hydroboost down the road but I have to do a disc brake conversion first.

Thanks!
 

Josie'sLandCruiser

Stop calling it a "FJ."
Joined
Feb 4, 2005
Messages
5,253
Location
Seattle, USA
Hi All:

A Toyota 4wd mini-truck brake booster from the 1980s is an *almost* direct, bolt-in replacement for the stock drum brake booster on a '74 FJ40.

When I say "almost" what I mean is a slight modification is required to the activator rod on the booster. This rod needs to be shorten a bit to work correctly on a 40 Series.

I can't quite remember the correct amount that needs to be trimmed-off the rod, but you should be able to figure that out with a search here on MUD.

Good luck!

Alan
 
Joined
Feb 18, 2004
Messages
376
Location
Seattle, WA
Minitruck and 60-series boosters will work. Throw an 80-series MC while you are it, if you're going 4-wheel discs.
 
Joined
Nov 23, 2009
Messages
75
Location
Dallas, TX
Thanks! Are there any non-Toyota vehicles that make good donors? Thought I read someting about the Volvo booster but I can't seem find it again.
 
Joined
May 6, 2005
Messages
5,467
Location
Southern Calif.
Whatever Booster you use just remember your still going to have to use your old master cylinder until you swap out to disk brakes, The Cruiser master cylinder has a 8psi valve that keep pressure in the lines for the drum brakes. Just aheads up Later after the disk brakes you can remove the valve
 
Joined
Feb 18, 2004
Messages
376
Location
Seattle, WA
I wouldn't bother with a non-Toyota booster, you won't have to dink around with differences in bolt patterns, clearance, etc.
 
Joined
Apr 4, 2006
Messages
14,069
Location
NorCal
Thanks! Are there any non-Toyota vehicles that make good donors? Thought I read someting about the Volvo booster but I can't seem find it again.

Been looking at booster threads for 5+ years, and I haven't heard any such thing. Minitruck...
 

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