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L33/TKO600 73 240Z


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Been working on lots of other peoples vehicles, finally made some progress.

 

I may have found the noise under medium/heavy load. I inspected the front diff bushings before I installed the diff, since it was a used drop out from a 96 Q45. They looked fine and had no cracks that I could see so I installed them as is. When I put the Z on the lift tonight it looked slightly askew - when I took the front mounting bolts out the center of the bushings literally fell into my hands. Nice. I'm lucky I didn't break the rear hanger since the front mounts were just aesthetic apparently.

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Going to order some energy suspension replacements, should be easy since the hard part is usually removing the old bushings!
There is a car show being held at my job on October 1st, I'm going to try and bring the Datsun there but not if it's her maiden voyage. So far she has only been up and down my street 4 or 5 times while I'm trying to figure out the noises and issues. If I can get a few days driving in before that date then maybe I can make it there.

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The differential mounting bushings were the root cause of the noises I was hearing. What was making the noise is kind of scary. The pinion (and thus the driveshaft) were lifting up several INCHES and hitting the parking brake equalizer on the bottom of the body. The rear of the differential is solid mounted to the 1/2" thick billet mustache bar through 2 studs on the rear differential cover. I cannot believe that those parts would flex as much as they did. I'm sure if I attempted WOT I would have broken something, either the diff cover, mustache bar, or the mounts for it.

Anyway, I'm a little miffed that I missed those bushings but I'm glad their catastrophic demise didn't seem to cause any other issues. I had some energy suspension urethane bushings shipped in, since literally every other bushing on the car has been replaced with such. Went for a little test drive down my street and no more noises! Woohoo!

Side note, air chisel was worth every penny to get the old bushing shells out. Screw doing that any other way.

I've got a few minor things to button up and I can start driving around on the street for some real testing.

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  • 2 weeks later...

We were supposed to be on vacation this week but we ended up cancelling our trip. Which gave me lots of time to finish the car.

Installed a headunit
Installed speakers
Cleaned up the wiring around the column
Spent an ENTIRE DAY getting the turn signals to work
Installed the rest of the interior trim
Made access panel cover for fuel pump
Got windows tinted
Installed front valence
Installed front bumper
Washed car
DROVE CAR

I've put about 100 miles on it so far. There are some things that I need to mess with in the tune and I'm still not quite happy with the shifter but both of those are pretty minor and don't impede me from driving around and getting some miles on the car.
My primary goal for finishing this week was because of a car show today, which I was able to make it to. We had over 60 cars enter, and I got a top 10 trophy. I was hoping for best import but I was snuffed by a tube chassis drag 'Solara'. It was powered by a 2JZ with the largest turbo I think I've ever seen short of a dump truck, so I guess it was technically a Toyota still.

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  • 3 weeks later...

I still wasn't happy with the shifter effort required for the TKO after relocating the shifter.

 

At the same time, I found an insane deal on a LS style T56. Had to drive almost 4 hours, but worth it.

 

I knew that if I didn't put the T56 in the Z, there is another project I will be working on shortly and this was too good of a deal to pass up. So either way I needed to take advantage of the deal.

 

I had planned to mess with the shifter again in the TKO, but after kicking the idea around for awhile I just decided to put the T56 into the Z.

I am going to keep the same clutch but I upgraded to a Fidanza aluminum flywheel. I'm hoping between the light weight of the Z and the bottom end torque from the motor it doesn't make the clutch too much of a hassle. Never had a car with an aluminum flywheel before. I also purchased a Pro-5.0 shifter for the T56, I had one before on my T-5 and I absolutely loved that shifter.

 

Anyway, the T56 is mounted in place, just waiting on the CX mount to arrive. Then I need to have a new clutch line made and I should be all set to be on the road again.

 

Edit: Also, the driveshaft is going to work out fine. Originally I gave the driveshaft guy the measurement with the yoke bottomed out in the tranny, and told him to subtract 1.5" from that for slip. He marked it 1.5" inches back, and when I came to pick up the shaft he had taken another 1.5" from where he marked! Needless to say, the yoke was not engaged as far as I would have liked on the TKO and I was going to bring it back to him at a later date and have him re-make it.

 

However, the T56 is a little bit longer (not that much than the TKO) and the slip yoke I found was also about 1/2" longer than the TKO slip yoke. Now the yoke has almost full engagement in the tranny. Just enough to push it into the tranny and back out onto the rear flange on the diff with a little play left in for drivetrain movement.

Edited by hornedcow
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