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DIY - How To: Transmission Mount Change SC300/SC400 5spd or Auto

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Old 08-13-12, 01:01 PM   #46
SC4MIKE
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Thanks KingPhilip, but yea believe me when I say I've read your thread like a manual, cover to cover. Some really good info shared there, and I'm definitely planning on changing my RLCA and RUCA bushings next. Hopefully that should address the good amount of squeaking I can hear coming from the rear of the car.

Thanks for the specs on the mount, btw. Its much appreciated.
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Old 08-13-12, 01:05 PM   #47
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Anyone have a clue if the mount is the same for an R154?
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Old 08-28-12, 11:38 AM   #48
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I am a new owner of a 92 SC400 and the vibration / sound when decelerating was a big worry for me when I bought the car. Of course, it was also why I was able to buy the car a lot less than the asking price. I replaced the Trans Mount this past weekend and what a change.

What a great DIY! Thank you.

Rick
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Old 01-02-13, 04:16 AM   #49
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Has anyone substituted high quality OE specified polyurethane mounts, and any brand preference?
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Old 04-21-13, 05:42 PM   #50
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Quote:
Originally Posted by Rementis View Post
Just wanted to say I had new tranny mount put on my SC400 yesterday. 163k miles on the original. The difference is like night and day. No more clunk going into reverse, and no more weird vibrations and noises on the highway. For $50 I should have done it a year ago. Had a couple of gear head friends throw it on for me, took less then 40 minutes.
I have this exact problem, whenever I go into drive or reverse I get a clunk. However when driving the tranny shifts fine. Bookmarking this thread, hopefully I can get around to it. Exactly which mount did you purchase? Any difference between the 92/93 SC 400 mounts?
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Old 07-08-13, 10:25 PM   #51
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Well I'm going to jump on the "wow what a difference it makes" bandwagon, lol. I changed my tranny mount out today on my 97 SC400 and DAMN! What a difference! Check out the pic. Oh, and this mount only has 111k miles on it.

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Old 07-21-13, 10:47 PM   #52
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Did it today on my car along with an ATF drain/fill. Makes a huge difference. Car vibration is soo much less and tranmission shifts soo smoothly (95 SC400 164,000 miles)

Got the part from Sewell Lexus $68 with club lexus discount. Local dealership wanted $110
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Old 08-13-13, 03:32 PM   #53
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bumping this thread, because I need to do mine, so is everyone just using the same transmission mount? I mean I called lexus and Toyota up and the prices for the mounts are pretty much the same and they both gave me different part numbere. is there a major difference between the two? I take it an NA supra 5 speed mount will still fit on my auto sc400? Going rate now is around 95 + tax which is double of what you guys were paying 6 years ago haha.
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Old 08-13-13, 05:08 PM   #54
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Kingshawty make sure you get your CL discount 1237150030 ($62.9)
http://lexus.sewellparts.com/oem-cat...C400-1993.html

I wouldn't mess with Supra parts for a SC400





I want to do this but want to stop the oily situation first so the oil doesn't break down the mount prematurely
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Old 08-13-13, 08:03 PM   #55
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Yup used the CL discount, saved me so much it was 145 at the dealer today, I swear their prices change every time I call them. paid 62 for the mount and 5 for the bolts that I'm missing and 13 for shipping! I'm stoked.
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Old 08-13-13, 08:25 PM   #56
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No one is changing the engine mounts at the same time?
The engine mounts costs more tho and you need 2x

Because the engine and tranny probably at different heights if you just replaced one but not the other
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Old 08-21-13, 09:34 PM   #57
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Replaced mine today car was freaking silent but it went back to being loud again half an hour ago, I got ticked off, anyone know what could be the problem?
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Old 09-03-13, 08:01 AM   #58
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I just had the motor mounts replaced, which helped a lot, and am going to replace the transmission mount this week.

What are the rest of the torque specs?
It looks like 19 ft-lb for the nuts that hold the mount to the crossmember but what about the bolts that hold the mount to the trans and the bolts that hold the crossmember to the chassis?
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Old 09-03-13, 08:51 PM   #59
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Quote:
Originally Posted by sanbaifo View Post
I just had the motor mounts replaced, which helped a lot, and am going to replace the transmission mount this week.

What are the rest of the torque specs?
It looks like 19 ft-lb for the nuts that hold the mount to the crossmember but what about the bolts that hold the mount to the trans and the bolts that hold the crossmember to the chassis?
Hm don't have exact specs for the 1SC, but should be similar to the 1GS specs of 10 ft/lb for the nuts and 19 ft/lb for the bolts.
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Old 09-05-13, 03:55 PM   #60
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Quote:
Originally Posted by Stock4AG View Post
No one is changing the engine mounts at the same time?
The engine mounts costs more tho and you need 2x

Because the engine and tranny probably at different heights if you just replaced one but not the other
my trans mount in my sc300 is shot, and i ordered a new one, but since that is being replaced, i need to replace my motor mounts too?
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Old 09-05-13, 03:55 PM
 
 
 
 
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