The Official GS300 to Lexus Part Interchange thread
12-17-18, 02:10 PM
#121
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Good information there on the trans.
As far as the rest of the questions that seem to keep popping up..
- JZS161 (second gen) interiors will not swap, the front seats may be close but that is the only interior part, aside from maybe a steering wheel or light bulbs.
- JZS147 (first gen) rear suspension is very nearly identical to the jzz30 sc300 and jza80 supra. This means that the automatic differential, axles, upper control arms will be swappable. 6 speed JZA80 differential is possible with 6 speed axles to match.
- JZA80 supra rear sway bar along with the mounts and end links will work for a JZS147 or JZZ30
- JZZ30 or JZA80 rear shocks will fit the rear of a JZS147. It will lower your car though.
- JZS147 front shocks and suspension is the same as the JZS161. No your JZA80 or JZZ30 front shocks wont work.
- JZA80 and JZZ30 brake calipers and rotors will fit a JZS147, I assume the fronts will also fit the jzs161, but i am unsure on the rears.
There are multiple transmission snouts, whether it be auto or manual, along with different transmission flanges or yolks, and rear differential flanges change too. Most all of this is interchangeable, but adapters are there too (like for a rear differential).
As far as the rest of the questions that seem to keep popping up..
- JZS161 (second gen) interiors will not swap, the front seats may be close but that is the only interior part, aside from maybe a steering wheel or light bulbs.
- JZS147 (first gen) rear suspension is very nearly identical to the jzz30 sc300 and jza80 supra. This means that the automatic differential, axles, upper control arms will be swappable. 6 speed JZA80 differential is possible with 6 speed axles to match.
- JZA80 supra rear sway bar along with the mounts and end links will work for a JZS147 or JZZ30
- JZZ30 or JZA80 rear shocks will fit the rear of a JZS147. It will lower your car though.
- JZS147 front shocks and suspension is the same as the JZS161. No your JZA80 or JZZ30 front shocks wont work.
- JZA80 and JZZ30 brake calipers and rotors will fit a JZS147, I assume the fronts will also fit the jzs161, but i am unsure on the rears.
There are multiple transmission snouts, whether it be auto or manual, along with different transmission flanges or yolks, and rear differential flanges change too. Most all of this is interchangeable, but adapters are there too (like for a rear differential).
12-17-18, 04:47 PM
#122
Racer
sc400 is the same as sc300, so the rear suspension is pretty identical aside from strut size, sway bar size and mounting, and differential gearing. I would say rear upper control arms.. but everything else probably isnt worth it.
12-17-18, 07:47 PM
#123
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Thanks. I have one more question: is there any upgrade from the First Gen GS300 if I pull brake calipers and rotors? I thought I read somewhere that the calipers were bigger or more pistons and would fit the GS300 caliper brackets but the rotors wouldn't fit or something. I don't know the offset of my rims but they ARE NOT stock, though they are 16". I didn't know if the SC400 used bigger brakes or if they were same as GS300.
12-18-18, 09:58 AM
#124
Racer
sc400/sc300 and gs300/gs400 uses the same calipers and rotors.
Ls400 fronts are an upgrade but they require a spacer and some grinding that I don't recommend. JZA80 twin turbo supra on the other hand has direct bolt on upgrades for front and rear. Fronts alone are about 250-300 each new.
Ls400 fronts are an upgrade but they require a spacer and some grinding that I don't recommend. JZA80 twin turbo supra on the other hand has direct bolt on upgrades for front and rear. Fronts alone are about 250-300 each new.
12-18-18, 10:25 AM
#125
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sc400/sc300 and gs300/gs400 uses the same calipers and rotors.
Ls400 fronts are an upgrade but they require a spacer and some grinding that I don't recommend. JZA80 twin turbo supra on the other hand has direct bolt on upgrades for front and rear. Fronts alone are about 250-300 each new.
Ls400 fronts are an upgrade but they require a spacer and some grinding that I don't recommend. JZA80 twin turbo supra on the other hand has direct bolt on upgrades for front and rear. Fronts alone are about 250-300 each new.
12-19-18, 06:27 PM
#126
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Hi,i recently swapped a gs300 tranny in my Lexus sc400,was told everything was plug and play,well after i got the tranny bolted in i found out,that was not true.Now im slapping my self in the face for not making sure it was 100% true.
So now im asking yall how i can fix this do not want to get a new tranny,now il explain my problems so after i figured out that the solenoid plug and whatever the thing is connected to the shifter shaft and the i believe to be speed sensor were all different plugs
so for the shifter shaft i swapped over the old one with no problems-solved
i swapped over the solenoid plug but the new tranny has 5,and the old one only had 4,so now no od
and the speedometer sensor has no plug at all on the new tranny,
so now my question is what can i do?
here is the closest pic i could find on the internet the small box looking solenoid is the one im missing the plug for
any help is very appreciated-sry for not being the best at explaining it all
btw the tranny does same the same model number as the old one
So now im asking yall how i can fix this do not want to get a new tranny,now il explain my problems so after i figured out that the solenoid plug and whatever the thing is connected to the shifter shaft and the i believe to be speed sensor were all different plugs
so for the shifter shaft i swapped over the old one with no problems-solved
i swapped over the solenoid plug but the new tranny has 5,and the old one only had 4,so now no od
and the speedometer sensor has no plug at all on the new tranny,
so now my question is what can i do?
here is the closest pic i could find on the internet the small box looking solenoid is the one im missing the plug for
any help is very appreciated-sry for not being the best at explaining it all
btw the tranny does same the same model number as the old one
07-13-19, 09:02 AM
#127
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Measurements are very close and all the right connections are in the right spots. My 1st Gen GS300 radiator gave out and they are virtually nonexistent in the salvage yards here in Idaho. But LS400s are abundant. An added bonus is that the LS came with a larger radiator capacity than the GS to keep their V8 engines cooler. Slightly thicker due to more cores I believe. But nearly identical in sizw
02-26-20, 02:47 AM
#128
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I have an electrical issue with my Gs 300
I have two broken sensors for my distribution and I believe it’s my carburetor (not 100% sure) I don’t know too much about Lexuses but I’m always willing to learn. They where broken by my little brother while I was gone for basic training. My grandfather tried fixing it but it didn’t work. But my Gs was my first car an I’m not giving up on it. So what could I do to replace those sensors, if I have to replace parts from other Lexus’s I can
02-26-20, 06:39 PM
#129
Racer
Any pictures of what sensors you're taking about? 2jzge will have a throttle body as its' fuel injected and the 2jzge has a distributor. If I know what sensors you're thinking of I can help you figure out the part numbers or what to do to fix.
04-21-20, 08:59 AM
#130
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Sorry it took so long to reply back
04-21-20, 05:25 PM
#131
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Thinking of a engine swap
I’m thinking of taking the engine out the engine an installing a different one with a different engine wiring harness
04-22-20, 09:36 PM
#132
Racer
Looks like just your plugs are broken and not the sensors themselves? If your distributor sensor is all funked up, I would just replace the whole unit as used ones are quite cheap on ebay. I've done this with good success and its' super easy, just need to adjust timing after back to stock.
If its just the plugs.. Here are the pigtails so you can rewire them. I reccomend soldering the connections with the correct rosin core leaded solder and heat shrink.
Intake air control valve:
https://www.bmotorsports.com/shop/pr...oducts_id/4211
distributor plug:
https://www.wiringspecialties.com/2j...tor-connector/
If its just the plugs.. Here are the pigtails so you can rewire them. I reccomend soldering the connections with the correct rosin core leaded solder and heat shrink.
Intake air control valve:
https://www.bmotorsports.com/shop/pr...oducts_id/4211
distributor plug:
https://www.wiringspecialties.com/2j...tor-connector/
04-24-20, 12:09 AM
#133
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Looks like just your plugs are broken and not the sensors themselves? If your distributor sensor is all funked up, I would just replace the whole unit as used ones are quite cheap on ebay. I've done this with good success and its' super easy, just need to adjust timing after back to stock.
If its just the plugs.. Here are the pigtails so you can rewire them. I reccomend soldering the connections with the correct rosin core leaded solder and heat shrink.
Intake air control valve:
https://www.bmotorsports.com/shop/pr...oducts_id/4211
distributor plug:
https://www.wiringspecialties.com/2j...tor-connector/
If its just the plugs.. Here are the pigtails so you can rewire them. I reccomend soldering the connections with the correct rosin core leaded solder and heat shrink.
Intake air control valve:
https://www.bmotorsports.com/shop/pr...oducts_id/4211
distributor plug:
https://www.wiringspecialties.com/2j...tor-connector/
