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Author Topic: Sc300/sc400/Supra rear BBK  (Read 1851 times)

cuttyman9

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Sc300/sc400/Supra rear BBK
« on: September 29, 2023, 02:59:13 PM »
By request- Supra, sc300 and sc400 rear 4 piston bbk!


You'll need:

覧覧覧CALIPERS覧覧
02-10 VW Toureg (rear calipers)
03-10 Porsche Cayenne (rear calipers)
05-15 Audi Q7 (rear calipers)

(I have found car-part.com is the cheapest place to search, its an annoying website but yields the cheapest prices outside of local junkyards)

PNs  20.7673.03 and 20.7673.04


覧覧-HARDWARE覧覧-

4x hex M12-1.75x30
(McmasterCarr.com PN )

2x hex M14-1.5x30 (35mm long will work as well)
(or reuse the hardware from Cayenne/Toureg/Q7, Even though they are a bit long.)
(Mcmastercarr.com PN )

2x Hex M16-1.5x30
(Mcmastercarr.com PN )

 
覧覧覧-ROTORS覧覧-

2x 2008-2014 ISF rear brake rotor  PN PRT6106


覧brake lines覧
Stock brake lines can be used although I would recommend getting stainless braided lines as it improves feel vastly.  (testing soon)

覧-Tools覧
1x m16-1.5 tap
(required for taping the one ear of each caliper to mount hardware inverted with head toward rotor)



NOTE: Calipers will need to be modified but only slightly.
Depending on brand of pads clearancing the of weights might be needed. (see later posts)
I found this tool works very well for this little bit of clearancing and is pretty damn cheap!

https://www.harborfreight.com/power-tools/grinders-sanders/portable-belt-sanders/53-amp-12-in-heavy-duty-bandfile-belt-sander-62863.html

Their sanding belts are kinda shitty so prep for using a few.


**You will remove the brake line cover and the rubber isolator and bend the brake line up and away from the rotor area.**

**the brake lines and bleeders need to be flipped as the small pistons are on the top and the big pistons are on the bottom.**
« Last Edit: March 29, 2024, 11:41:24 AM by cuttyman9 »
Founder of "Official 5th Gen Celica" on Facebook
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99 F150
71 Cutlass
75 Trans Am
67 Chevelle dmax
66 Chevy k20
36 Chevy Master Coupe
71 Triumph Stag
91 300zx TT
92 Subaru SVX
92 Stealth RT/TT
88 Corolla GT-S
92 Typhoon
53 dodge pickup
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66 mustang GT

cuttyman9

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Re: Sc300/sc400/Supra rear BBK
« Reply #1 on: October 10, 2023, 11:51:28 AM »
The first picture is showing the position of the caliper.
The caliper itself is tapped (m16-1.5 tap listed above as required)
Thread the bolt through from the rotor side of the bracket and make the bolt flush with the edge of the caliper mounting ear.
The calipers are high quality aluminum so they tap nicely.
(Make sure you have the calipers in the right spot, small piston touches the rotor first when the cars moving forward)

The area marked with permanent marker is where clearancing needs to occur.
It痴 pretty light amount.



The last photo shows the casting flash/lump that needs to be ground down to clear.
It痴 not critical to the function of the kncukle.

The other pictures show the ball joint location off the control arm.

This area is very tight. Any extra casting material needs to be removed on the knuckle, there is a lot up by the upper control arm.
« Last Edit: March 29, 2024, 10:35:10 AM by cuttyman9 »
Founder of "Official 5th Gen Celica" on Facebook
92 Celica GT 2gr
99 F150
71 Cutlass
75 Trans Am
67 Chevelle dmax
66 Chevy k20
36 Chevy Master Coupe
71 Triumph Stag
91 300zx TT
92 Subaru SVX
92 Stealth RT/TT
88 Corolla GT-S
92 Typhoon
53 dodge pickup
66 polara wagon
66 mustang GT

cuttyman9

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Re: Sc300/sc400/Supra rear BBK
« Reply #2 on: October 10, 2023, 12:33:11 PM »
This shows the clearancing by the upper bolt hole on the caliper, this can be reduced when using a socket head bolt (Allen head)

It痴 a tight fit as stated before but it does work.
« Last Edit: March 29, 2024, 10:32:52 AM by cuttyman9 »
Founder of "Official 5th Gen Celica" on Facebook
92 Celica GT 2gr
99 F150
71 Cutlass
75 Trans Am
67 Chevelle dmax
66 Chevy k20
36 Chevy Master Coupe
71 Triumph Stag
91 300zx TT
92 Subaru SVX
92 Stealth RT/TT
88 Corolla GT-S
92 Typhoon
53 dodge pickup
66 polara wagon
66 mustang GT

cuttyman9

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Re: Sc300/sc400/Supra rear BBK
« Reply #3 on: March 29, 2024, 10:38:37 AM »
The first and second photo shows the other casting flash needing to be removed. The webbing interferes and it痴 relatively small and thin so it痴 easy to get out of there.

The last photo shows some of the clearancing on the back of the caliper.
Founder of "Official 5th Gen Celica" on Facebook
92 Celica GT 2gr
99 F150
71 Cutlass
75 Trans Am
67 Chevelle dmax
66 Chevy k20
36 Chevy Master Coupe
71 Triumph Stag
91 300zx TT
92 Subaru SVX
92 Stealth RT/TT
88 Corolla GT-S
92 Typhoon
53 dodge pickup
66 polara wagon
66 mustang GT

cuttyman9

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Re: Sc300/sc400/Supra rear BBK
« Reply #4 on: March 29, 2024, 10:42:16 AM »
An alternative put up by GP_aristo on IG was to press (or tighten a nut) into the bracket backwards and use a bolt on through opposite of the other method.
This avoids tapping the caliper ear but puts a bolt head where your ball joint is so it may require aftermarket upper control arms.

Most of these photos courtesy of GP_aristo
Founder of "Official 5th Gen Celica" on Facebook
92 Celica GT 2gr
99 F150
71 Cutlass
75 Trans Am
67 Chevelle dmax
66 Chevy k20
36 Chevy Master Coupe
71 Triumph Stag
91 300zx TT
92 Subaru SVX
92 Stealth RT/TT
88 Corolla GT-S
92 Typhoon
53 dodge pickup
66 polara wagon
66 mustang GT

cuttyman9

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Re: Sc300/sc400/Supra rear BBK
« Reply #5 on: March 29, 2024, 10:42:53 AM »
**********************DISCLAIMER*********************
 
The person that is purchasing this product makes the following representations and acknowledges and agrees to the following terms and conditions:
 
This off-road race only product ("this Product") is designed and intended for use in organized, amateur and professional racing events, but is limited to closed-course racing and open-course racing that is formally sanctioned by a recognized racing organization involving the motor vehicle in which it is installed (the "Vehicle"). It is not for use on public highways or roads nor is it for recreational off-road use other than solely for competition purposes. The person or entity buying this Product and/or using this Product (the "User") agrees to use the Vehicle solely for competition uses as described herein.
 
The User accepting this disclaimer acknowledges and hereby indemnifies and saves harmless Overkill Engineering, its officers, employees, agents, distributors and dealers for any damages, penalties, fines, expenses or other costs which may arise from the use of this Product and without limiting the generality of the foregoing specifically acknowledges the following:
 
   Use of this Product for purposes other than solely for competition is a violation of federal law and may violate applicable state or local environmental, motor vehicle and other laws. The User warrants that this Product shall only be used in sanctioned closed-circuit events.
-That use of this Product may violate warranties from the manufacturer of the Vehicle or from others.
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-That the installation of this Product, improper installation of this Product, use of this Product with other components or failure to use this Product in conjunction with other components, could result in or cause personal injury, property damage or death.
Founder of "Official 5th Gen Celica" on Facebook
92 Celica GT 2gr
99 F150
71 Cutlass
75 Trans Am
67 Chevelle dmax
66 Chevy k20
36 Chevy Master Coupe
71 Triumph Stag
91 300zx TT
92 Subaru SVX
92 Stealth RT/TT
88 Corolla GT-S
92 Typhoon
53 dodge pickup
66 polara wagon
66 mustang GT

 

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