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Author Topic: SRA RT142 Disc Conversion  (Read 2355 times)

Offline hybrid_turbo

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SRA RT142 Disc Conversion
« on: Oct 22, 2009, 10:21:30 pm »
thought i would share this with you guys on here, im not sure if you even got the RT142 Corona though.
so anyway, the RT142/ST141 in Australia came with disc and drum IRS and disc and drum SRA. so you have like a
1 in 4 chance of finding one here that has the disc SRA rear end.

first you need to remove the wheels.. (duh)
crab a 10mm spanner and undo the brake line that is bolted to the back of the diff near the shocker mount.
once that is off you need a 14mm spanner to undo the 2 bolts on the back of the caliper.
take them out and the caliper will come off.

now that the caliper is out of the way you should be able to remove the disc, make sure the handbrake is off and
remove it.

next you will need a 14mm socket and extension bar to undo the axel bolts, you get to them through the access holes


in the end of the axel. once that is done pull the axel all the way out and dont put it somewhere where its
going to roll on to the road!.

the backing plates should be hanging down at this point and only the handbrake cables will be left. just unbolt
the cables from the body and in the middle of the car they come apart just like a bike cable or accelerator cable
comes off.

once that is off you should have the disc, caliper, backing plate and both handbrake cables.
you can if you want, also grab the brake hard line from the back of the diff. if you dont you will
have to cut the line and use a flaring tool to make it work. not a big deal and is easy as hell.

your probably better off buying new disc's and pads. but im cheap so i didnt lol.


now obviously you need to remove all the drums.
its just like i mentioned above but a little different.
remove wheel.
remove the drum brake cover thing (has that thing actually got a name lol)?
undo the brake line on the back of the backing plate
undo the axel bolts
pull out axel
unbolt handbrake cable
and remove backing plate with handbrake cable connected.

then you just put the disc's on the same way they came off of the other car and you have Disc's on your SRA  :)





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Offline 85GTS

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Re: SRA RT142 Disc Conversion
« Reply #1 on: Oct 22, 2009, 10:28:32 pm »
Figures.... the last year we go the Corona was 1981, which would be the RT130  :no:
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Offline hybrid_turbo

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Re: SRA RT142 Disc Conversion
« Reply #2 on: Oct 22, 2009, 10:38:43 pm »
Quote
The Corona was replaced for the 1983 model year by the larger front wheel drive Camry

ouch...  :no:
well, now i have something else i can sell :P
82 RA60
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Offline Sigma Projects

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Re: SRA RT142 Disc Conversion
« Reply #3 on: Oct 24, 2009, 05:20:41 pm »
great info. Seems to be easiest way for rear disc. Too bad we never got those here, those looked pretty cool. Especially the coupes.
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Offline a2ndopinion

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Re: SRA RT142 Disc Conversion
« Reply #4 on: Oct 27, 2009, 01:54:07 am »
now obviously you need to remove all the drums.
its just like i mentioned above but a little different.
remove wheel.
remove the drum brake cover thing (has that thing actually got a name lol)?

Jason, can I assume that you are talking about the DRUM?
ASE certified: Master Auto, Truck, Machinist & Collision Repair/Refinish Tech/Damage Estimator, Undercar & Parts Specialist, Service Advisor; Oregon Certified Vehicle Appraiser
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Offline hybrid_turbo

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Re: SRA RT142 Disc Conversion
« Reply #5 on: Oct 27, 2009, 07:32:27 am »
yes thats what i meant,  :heh:

BLONDE MOMENT!
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Offline wirysage

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Re: SRA RT142 Disc Conversion
« Reply #6 on: Oct 27, 2009, 09:01:10 am »
I know what my next mod will be!

Offline uncleremuslegend

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Re: SRA RT142 Disc Conversion
« Reply #7 on: Oct 28, 2009, 02:24:49 pm »
nice :thumbs:

wonder what the shipping would cost on that...figuring the discs would be the easy part to get over here...

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Offline hybrid_turbo

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Re: SRA RT142 Disc Conversion
« Reply #8 on: Oct 28, 2009, 08:27:08 pm »
i still have a little more to add to this, they need "retainer rings" welded to the back of the axels as the RT142
axels have them but the RA60 axels dont. so will be getting some made up and welded on and will post pics.

easy as shit.
82 RA60
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93 JZA80
BARRA MX83
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Offline a2ndopinion

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Re: SRA RT142 Disc Conversion
« Reply #9 on: Oct 29, 2009, 04:39:11 am »
Those hats:

look to be close to the same size as the ones AJ posted from the Previa van!

« Last Edit: Oct 29, 2009, 04:44:17 am by a2ndopinion »
ASE certified: Master Auto, Truck, Machinist & Collision Repair/Refinish Tech/Damage Estimator, Undercar & Parts Specialist, Service Advisor; Oregon Certified Vehicle Appraiser
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Offline Sigma Projects

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Re: SRA RT142 Disc Conversion
« Reply #10 on: Oct 29, 2009, 09:56:27 am »
and the plot thickens :biggrin: Curious how close they are.
1984 Celica GT Coupe    sold and missed it
1983 Celica GT Coupe    attacked... will miss it (RIP) JY
1982 Celica GT Liftback  sold and won't miss it, lol
1985 Celica GT Coupe    new love =P

2000 Honda Insight Daily Beater
1987 MR2 now mine because brother in law got shit from the father in law :heh:
My Instagram
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Offline hybrid_turbo

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Re: SRA RT142 Disc Conversion
« Reply #11 on: Oct 29, 2009, 11:06:58 am »
want some messurements for the RT142 rear disc's?

something i just noticed is the Tarago disc's you pictured are vented and the corona disc's are solid
« Last Edit: Oct 29, 2009, 11:10:25 am by hybrid_turbo »
82 RA60
82 RA60
93 JZA80
BARRA MX83
1UZ MX83
1.5JZ MX83 Drift Slut
87 AW11 MR2

Offline a2ndopinion

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Re: SRA RT142 Disc Conversion
« Reply #12 on: Oct 29, 2009, 01:35:22 pm »
I noticed that too, but the calipers and their mounts are different. :wall:
ASE certified: Master Auto, Truck, Machinist & Collision Repair/Refinish Tech/Damage Estimator, Undercar & Parts Specialist, Service Advisor; Oregon Certified Vehicle Appraiser
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Offline jrally

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Re: SRA RT142 Disc Conversion
« Reply #13 on: Nov 10, 2009, 04:39:31 pm »
One of these days, after the basic beast of my car is done, I'm planning on swapping the Cressida wagon ('85) rear disk brakes onto my Cressida wagon axle.  It's a 7.1" instead of the 6.7", but I would be curious if the set-up would swap over easily to the smaller axle, same 4 lug bolt pattern..?

-Jon
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(building a dream I had one night!!)

Offline 85GTS

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Re: SRA RT142 Disc Conversion
« Reply #14 on: Nov 10, 2009, 05:11:30 pm »
One of these days, after the basic beast of my car is done, I'm planning on swapping the Cressida wagon ('85) rear disk brakes onto my Cressida wagon axle.  It's a 7.1" instead of the 6.7", but I would be curious if the set-up would swap over easily to the smaller axle, same 4 lug bolt pattern..?

-Jon
wait.... '85 SRA wagon cressidas got disc brakes?
85 Celica GT-S LB "Blue"

78 Celica ST coupe "Sleepra"

00 Lexus GS 400

91 Lexus ES 250

88 Celica All-Trac

04 Sequoia (wifes)

17 Chevy Bolt EV (daily)

The Second Amendment will always be under attack because it is the only veto held by the people.