Transmisson Swap 1987 NA mk3

SupraTaylor · 04-24-2009, 05:19 PM

MY AUTO transmisson is going out in my 1987 supra and i was wondering what was needed to put a 5 speed manual Trany (auto sucks) in. I would appreATE ALL the help i can get

Kevin · 04-24-2009, 05:39 PM

You would need a manual gearbox, bellhousing, driveshaft, clutch and brake pedals, clutch master and slave sylinder, a clutch and clutch line... anything else im missing? ecu maybe? idk.

SupraTaylor · 04-24-2009, 05:42 PM

Now the Auto Tranny in my 87 has like a power Button and lights for that stuff is that stuffg going to interfere with the 5 speed???

Kevin · 04-26-2009, 12:07 AM

Are you talking about TEMS? The sport button and comfort button with the 4 lights? Correct me if i'm wrong.. im not familiar with the automatics. If it is the TEMS then it shouldn't interfere

SUPRAMAN3468 · 04-26-2009, 04:05 AM

i also need another wiring harness, the wires that go to the tranny r
totally different

btwilson86 · 04-26-2009, 04:59 PM

The auto tranny has the "Normal" and "Power" mode, basically alters the shift pattern of the transmission. I do believe you need a new harness, so those won't matter. However, your gauge cluster will still have an "O/D" spot on it, whereas the manual obviously does not. Also I am pretty sure that your gear in the differential are different to compensate for the 3 speed w/overdrive auto tranny versus the 4 speed w/overdrive manual tranny.

You should get the proper ECU for the engine and transmission combo you plan on running, otherwise you will probably have a CEL on all the time for the "Neutral Start Switch" and would need to hardwire your reverse lights for them to work.

So you should get:

Complete transmission (bellhousing, gear box, etc.)
Fywheel
Clutch
Master and Slave cylinders
Brake and Clutch pedal assembly
Clutch lines
ECU (optional)
Wiring harness (optional)
Driveshaft
Rear Gear
Gauge Custer (optional)

That's all I can think of, I know some of it has been mentioned earlier in this post, thought I'd make it easy ot see

carl johansson · 04-27-2009, 03:38 AM

If you really want a 5 speed - you are better off selling what you have and buying a 5 speed - unless you are very handy and experienced in working on cars in a major way!

Carl Johansson

Kevin · 04-27-2009, 03:43 AM

carl's right. your probably better off buying a manual.. and selling your auto (no one needs to know about ur tranny going shh!) jk. up to you. it probably cheaper that way.. unless you are a mechanic. and have a different car to drive daily.

SupraTaylor · 04-27-2009, 04:16 PM

ya you guys are right I'll prob fix this one up and sell it and uy one with a stick

04-24-2009, 05:19 PM	#1
SupraTaylor Stock Join Date: Apr 2009 Location: longview Posts: 12	Transmisson Swap 1987 NA mk3 MY AUTO transmisson is going out in my 1987 supra and i was wondering what was needed to put a 5 speed manual Trany (auto sucks) in. I would appreATE ALL the help i can get

04-26-2009, 04:59 PM	#6
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	The auto tranny has the "Normal" and "Power" mode, basically alters the shift pattern of the transmission. I do believe you need a new harness, so those won't matter. However, your gauge cluster will still have an "O/D" spot on it, whereas the manual obviously does not. Also I am pretty sure that your gear in the differential are different to compensate for the 3 speed w/overdrive auto tranny versus the 4 speed w/overdrive manual tranny. You should get the proper ECU for the engine and transmission combo you plan on running, otherwise you will probably have a CEL on all the time for the "Neutral Start Switch" and would need to hardwire your reverse lights for them to work. So you should get: Complete transmission (bellhousing, gear box, etc.) Fywheel Clutch Master and Slave cylinders Brake and Clutch pedal assembly Clutch lines ECU (optional) Wiring harness (optional) Driveshaft Rear Gear Gauge Custer (optional) That's all I can think of, I know some of it has been mentioned earlier in this post, thought I'd make it easy ot see __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

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04-24-2009, 05:39 PM	#2
Kevin 3" Exhaust Join Date: Apr 2009 Location: Ontario, Canada Posts: 194	You would need a manual gearbox, bellhousing, driveshaft, clutch and brake pedals, clutch master and slave sylinder, a clutch and clutch line... anything else im missing? ecu maybe? idk.

04-24-2009, 05:42 PM	#3
SupraTaylor Stock Join Date: Apr 2009 Location: longview Posts: 12	Now the Auto Tranny in my 87 has like a power Button and lights for that stuff is that stuffg going to interfere with the 5 speed???

04-26-2009, 12:07 AM	#4
Kevin 3" Exhaust Join Date: Apr 2009 Location: Ontario, Canada Posts: 194	Are you talking about TEMS? The sport button and comfort button with the 4 lights? Correct me if i'm wrong.. im not familiar with the automatics. If it is the TEMS then it shouldn't interfere

04-26-2009, 04:05 AM	#5
SUPRAMAN3468 Stock Join Date: Apr 2009 Location: FLORISSANT Posts: 10 Blog Entries: 1	i also need another wiring harness, the wires that go to the tranny r totally different

04-27-2009, 03:38 AM	#7
carl johansson 3" Exhaust Join Date: Nov 2007 Location: Auberry, California Posts: 141	If you really want a 5 speed - you are better off selling what you have and buying a 5 speed - unless you are very handy and experienced in working on cars in a major way! Carl Johansson

04-27-2009, 03:43 AM	#8
Kevin 3" Exhaust Join Date: Apr 2009 Location: Ontario, Canada Posts: 194	carl's right. your probably better off buying a manual.. and selling your auto (no one needs to know about ur tranny going shh!) jk. up to you. it probably cheaper that way.. unless you are a mechanic. and have a different car to drive daily.

04-27-2009, 04:16 PM	#9
SupraTaylor Stock Join Date: Apr 2009 Location: longview Posts: 12	ya you guys are right I'll prob fix this one up and sell it and uy one with a stick