1986 Front brake upgrade ?'s
03-30-2009, 03:19 PM
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1986 Front brake upgrade ?'s
So I've been doing a bit of research, and just want to run this idea out to see if I've got it all straight in my head.
I have a 1986 22RE 5 speed 4Runner. Can I swap in a brake master cylinder, calipers & rotors from a 1993 3.0 Auto 4Runner. Is it worth it? And do I have to change the rotors, or can I just keep the 4cyl rotors on there?
I have a 1986 22RE 5 speed 4Runner. Can I swap in a brake master cylinder, calipers & rotors from a 1993 3.0 Auto 4Runner. Is it worth it? And do I have to change the rotors, or can I just keep the 4cyl rotors on there?
03-31-2009, 03:50 PM
#2
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If the MC is 1" bore yes...stock 86 is 13/16"
Calipers are 4 piston V6 calipers on the 93, 86 has the 4cyl 2 piston type. ( You'll have to trim a bit off the dust sheild to fit the V6 calipers...no biggy...an inch at most.)
Both are good mods, and will make a braking difference...I have done both and IMO work very well on 1st gens
Rotors I believe are the same
Calipers are 4 piston V6 calipers on the 93, 86 has the 4cyl 2 piston type. ( You'll have to trim a bit off the dust sheild to fit the V6 calipers...no biggy...an inch at most.)
Both are good mods, and will make a braking difference...I have done both and IMO work very well on 1st gens
Rotors I believe are the same
03-31-2009, 07:06 PM
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If the MC is 1" bore yes...stock 86 is 13/16"
Calipers are 4 piston V6 calipers on the 93, 86 has the 4cyl 2 piston type. ( You'll have to trim a bit off the dust sheild to fit the V6 calipers...no biggy...an inch at most.)
Both are good mods, and will make a braking difference...I have done both and IMO work very well on 1st gens
Rotors I believe are the same
Calipers are 4 piston V6 calipers on the 93, 86 has the 4cyl 2 piston type. ( You'll have to trim a bit off the dust sheild to fit the V6 calipers...no biggy...an inch at most.)
Both are good mods, and will make a braking difference...I have done both and IMO work very well on 1st gens
Rotors I believe are the same
03-31-2009, 07:29 PM
#5
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A wise man once posted:
somethings I have been reading about the 1" MC (I have one to install too) is that the brakes will feel worse after the swap because the ratio is different unless you convert to a dual diaphram master cylinder (86-87 turbo truck or 88 V-6 4runner, T100's or something like that)
with the stock first gen booster and 1" MC the pedal may feel like it is stiffer and go closer to the floor. here is the MC thread I was reading:
http://www.pirate4x4.com/forum/showthread.php?t=763888
booster links:
http://home.4x4wire.com/erik/4runner/brakes/
http://www.pirate4x4.com/forum/showt...ferrerid=89727
Load Sensing Proportional Valve: LSPV --more to follow
Removal: http://4x4spot.com/proportioning.htm
http://www.off-road.com/trucks4x4/ar....jsp?id=186295
Rebuilding Brake Calipers (good detailed writeup)
http://www.pirate4x4.com/forum/showthread.php?t=770289
with the stock first gen booster and 1" MC the pedal may feel like it is stiffer and go closer to the floor. here is the MC thread I was reading:
http://www.pirate4x4.com/forum/showthread.php?t=763888
booster links:
http://home.4x4wire.com/erik/4runner/brakes/
http://www.pirate4x4.com/forum/showt...ferrerid=89727
Load Sensing Proportional Valve: LSPV --more to follow
Removal: http://4x4spot.com/proportioning.htm
http://www.off-road.com/trucks4x4/ar....jsp?id=186295
Rebuilding Brake Calipers (good detailed writeup)
http://www.pirate4x4.com/forum/showthread.php?t=770289
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