Is my tranny or differential broke? Options

[slavie]

It'll still accelerate slower because the final drive on the S51 is also longer. But, if the car we're talking about is the one with 3SGTE, then S51 is the better gearbox - the engine has more power (and higher redline, too, iirc), so you want the longer gears/final drive.

And yes, that's the electronic speed sensor - the 3 pin plug right above the pas side axle.

Back when I was still abusing my Camry, I actually made a hybrid gearbox with the shorter S54 1-5 gears and the longer 5th gear and final drive out of S51. It worked out pretty well - I had noticeably better acceleration in 1-4, and then the longer 5th gear for acceptable highway revs. The 5th gear synchro was not happy though as the differences in rpm b/w 4th and 5th gear was higher now. Had to shift slower into 5th or it would grind.

[HardHead93]

It'll still accelerate slower because the final drive on the S51 is also longer. But, if the car we're talking about is the one with 3SGTE, then S51 is the better gearbox - the engine has more power (and higher redline, too, iirc), so you want the longer gears/final drive.

And yes, that's the electronic speed sensor - the 3 pin plug right above the pas side axle.

Back when I was still abusing my Camry, I actually made a hybrid gearbox with the shorter S54 1-5 gears and the longer 5th gear and final drive out of S51. It worked out pretty well - I had noticeably better acceleration in 1-4, and then the longer 5th gear for acceptable highway revs. The 5th gear synchro was not happy though as the differences in rpm b/w 4th and 5th gear was higher now. Had to shift slower into 5th or it would grind.

That is good to know because this is a 3sgte Celica.

[HardHead93]

Bad news! The S51 tranny I got has broken hooks for the shifter cables.
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I can't believe I missed that when I picked it up. I call the salvage yard and they are willing to exchange it. It just sucks because I have to go back to El Paso, TX (1 hour each way) to get to the yard. I also pulled the S54 tranny from the car. It was not too bad, it only took 3 hours. It will probably take longer to put back in (taking apart is faster than putting it back together). I have the engine on a hanger inside the bay because only 1 of the 4 motor mounts stays attached when pulling the tranny.
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Here is my old clutch. It is a SPEC Stage 2 disk with an Exedy pressure plate. It held 340 hp to the wheels fine on e85. I also have a lightweight flywheel with this setup.
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This post has been edited by HardHead93: May 3, 2019 - 9:09 PM

[Box]

It's always something isn't it?

[HardHead93]

Let’s try this again. I found 2 S53 transmissions at the junkyard. I bought them both. I hope 1 of them works out.

[HardHead93]

Does the clutch disk from a S54 transmission work in a S51 or S53? I might as well put a new clutch on the car since I am dropping the tranny.

The gearboxes are identical aside from the gear ratios inside.

Also, take a look at the speedo sensor - it may have been cable driven still in 93, so you would have to swap the electronic one from your old gear box. They can be a royal PITA to get out if things are rusty, so be careful. I've broken one or two taking them out back when I was yonder and un-wiser.

These 2 S53 transmissions I got have the cable driven speed sensor. I wish these idiots at the junkyard wouldn't have broken that S51 when they pulled it from the car. I was really looking forward to the longer gear ratios. Also, it had an electronic speed sensor. I bought a cable to electric speed sensor adapter so I can just plug it in. The adapter is a Trail-Gear Speedometer Adapters 301447-1-KIT.

[Bitter]

That's repairable with some aluminum braze, if you really wanted to.

[HardHead93]

That's repairable with some aluminum braze, if you really wanted to.

I would have done that if I had the pieces that broke off. The junk yard had yanked the tranny before I got there.

[HardHead93]

Here are the 2 S53 transmissions I got off 1990 Celicas. I plan to use the one on the left because it is cleaner and out of a lower mileage Celica. As you can see I have already put the electronic speed sensor in the tranny. I will be putting it into the Celica this weekend.

[url="https://flic.kr/p/2fLBjJf"]

This post has been edited by HardHead93: May 9, 2019 - 8:01 PM

[Box]

Wooo, hopefully it goes well this time.

[cheela]

dang! 3 transmissions to do one fix. that sucks but hopefully this will be it and you can have it in and running again soon.

[Smaay]

yeah a good fabricator can fix those broken brackets, if you have the pieces. good luck!

[HardHead93]

yeah a good fabricator can fix those broken brackets, if you have the pieces. good luck!

That’s the problem, they lost the pieces.