brake upgrade on 1st gen runner?

H8R · 11-06-2009, 09:15 AM

I've got an '85 4runner on 33x12.50R15's, newly installed 22re, with stock 4.10 gearing and a bad brake booster.

I already have a toyota dual brake booster, gm 1" master cylinder with toyota adapter, an adjustable brake proportioning valve and steel braided brake lines for an upgrade. I also have front calipers and rotors from a '95 T100 4wd.

My question is if the calipers and rotors I already have will work on my '85 4runner's solid axle or will I need a caliper bracket, wheel spacers, and/or larger wheels to clear the larger brakes or will they bolt right up?

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Etype R · 11-06-2009, 09:27 AM

You need 81+ Landcruiser brake rotors and V6 IFS calipers, not sure if the T100 calipers are the same. You will need different rotors though.

SpecialScottie · 11-06-2009, 09:51 AM

You might be able to use the T-100 rotors on the back

**waskillywabbit** · 11-06-2009, 09:53 AM

Probably need some wheel spacers to clear the bigger calipers or do a little grinding.

Why would you want to put GM on a Toyota? Get a FJ80 MC. You need sfa vented rotors and V6 IFS calipers.

Tons of info on Pirate and all over the place on this upgrade.

H8R · 11-06-2009, 07:30 PM

thanks for the replies.

I pulled a wheel off and compared the bolt pattern and size of the rotors. The bolt pattern on the rotors that I had was something like 6 x 5.0", so no biggie. I ordered some '85 landcruiser front rotors from advance auto for 23 bux each

11-06-2009, 09:27 AM	#2 (permalink)
Etype R Registered User Join Date: Oct 2005 Posts: 294	You need 81+ Landcruiser brake rotors and V6 IFS calipers, not sure if the T100 calipers are the same. You will need different rotors though. __________________ 1985 Toyota 4Runner - Full SR5 package - 4 inch lift - 35" tires

11-06-2009, 09:51 AM	#3 (permalink)
SpecialScottie Registered User Join Date: Jan 2008 Location: Sun Valley, CA Posts: 547	You might be able to use the T-100 rotors on the back __________________ 02 KLX300 Dual Sported (Daily Driver) 87 Turbo 4runner STOCK 85 4runner: Automatic marlin5.29 elocker rear end. Rola roof rack. 33" BFG KM2's Build Thread 87 4runner (parts) 95 4runner 2wd auto(sold)

11-06-2009, 09:53 AM	#4 (permalink)
waskillywabbit Super Moderator-Sponsoring Member Staff Join Date: Jul 2003 Location: Tuscaloosa, AL Posts: 14,548	Probably need some wheel spacers to clear the bigger calipers or do a little grinding. Why would you want to put GM on a Toyota? Get a FJ80 MC. You need sfa vented rotors and V6 IFS calipers. Tons of info on Pirate and all over the place on this upgrade. __________________ WabFab Off-Road, LLC MySpace Twitter Facebook 7th Annual South East 4Runner Jamboree, 2010 The toughest part of a Jeep is the chick driving it. WabFab Off-Road 4th Anniversary Sale

11-06-2009, 07:30 PM	#5 (permalink)
H8R Registered User Join Date: Dec 2006 Posts: 17	thanks for the replies. I pulled a wheel off and compared the bolt pattern and size of the rotors. The bolt pattern on the rotors that I had was something like 6 x 5.0", so no biggie. I ordered some '85 landcruiser front rotors from advance auto for 23 bux each Last edited by H8R; 11-06-2009 at 08:09 PM. Reason: clarity

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