NewZed

A welded diff is pretty obvious, from what I've read. The rear wheels chirp when turning, chattery chirpy turns at low speed. Handles weird, probably understeers. How did he weld the diff mount? That's going to be noisy. Check out the RTz-style mount from Technoversion.

Rockauto.com. Maybe even your local auto parts store, or Nissan dealer. Just search tension rod bushing on Google and see what you find.

It won't hold up as well as an R200. And the spinning tire insurance policy will still wear the differential out eventually, since there will be a lot of one-wheel spinning. Your system is unbalanced. Don't forget about the diff mount problem also. You'll probably tear it first, before any of those other problems happen. Nickels and dimes. Might as well sit down, list out the parts, and do the math on where you want to end up.

Do not drop anything. Worst case, use a dead blow or rubber mallet to lightly tap things in to place. What does this mean "bolt back on right"? There might be a clue there. What shape is it in now? The case is almost on or it's disassembled? What do you see? More clues - who is "they"? Who is "her"? Describing the situation is 90% of the battle.

What part of America? If you're close I could drive by and throw one at you. If you're far, probably not.

Doesn't seem to be an engine problem if the above is true. He just doesn't want to do EFI. Carry on...

GM used to be known for interchangeable parts. Change the motor mounts and you could put almost any GM engine you wanted in any GM car. Wouldn't be a surprise if the LS swap kit worked for the V6, since they're both factory options for the Camaro.

Forgot about this guy. He seems to be coming in on the low end of price and people seem happy with the products. Don't know who he is, just see him filling up his product portfolio. One example. He has a whole bunch of other products. http://forums.hybridz.org/topic/123612-new-part-chromoly-axle-companion-flange-to-930cv/ https://zcardepot.com/driveline/rear-axle/axle-stub-companion-flange-chromoly-930-cv-racing.html?search=axle

Torque, traction, and shock loads damage the drivetrain. Not just the available numbers. You can't even buy a set of adapters for half of $850. But Chequered Flag Joe took over MM's business and makes adapters and shafts if you do it anyway. You'll have to call him his web site is out of date. Copied some links to other options. http://www.chequeredflagracing.net/Datsun.html http://forums.hybridz.org/topic/119708-modern-motorsports-240sx-rear-caliper-brackets/ http://www.driveshaftshop.com/import-axles/datsun-510-240z-c-v-conversion-kit-with-108mm-flanges http://forums.hybridz.org/topic/123305-need-some-opinions-on-rear-half-shaft-route-with-r200-vlsd/ Why don't you just buy another ECM and send that one in for tuning? Then swap it in when it gets back. They're wrecking yard products, right? $40?

Some, maybe all, of the aftermarket new CV axles use standardized joints and center axles, with different ends to match the applications. So they won't combine with a Nissan axle to make a hybrid axle. Beware. Remanufactured axles should work, but even those might be reman aftermarket. Better examine closely before buying. Check the axle manufacturer web sites and some will describe the details.

cgsheen sells a kit. He must be modest. Google the "garage" in his sig.

Make a list of the things you read about in your shit load and post it up. People can give the pros and cons of each. There are basically two ways to go - lowering springs, or "coil-over" kits. Coil-overs offer adjustable ride height, with lowering springs you get what ever they give you (like what you have now). Coil-overs are best for fine-tuning ride height.

Back to the original question. You mentioned a MAF(Sensor) and O2 sensor. Those two things do not serve the same function, one is quantity and one is air-fuel ratio. One is before the combustion process, one is after. One is on the intake system, one is on the exhaust. You're in an interesting spot, knowledge-wise. You write like you know, but hopefully, (for you) you don't spend the same way. You should spend more time learning before you spend more money.

The springs aren't stock size, whatever they are. They're not preloaded like the stock length factory springs would be, thye're hanging free with the car lifted. They've been painted orange so hard to tell what they are. Stock is black, Tokicos are red, MSA's are blue...etc. Scratch the orange and see what's underneath. Look at the end of the spring coil to see if it's a clean cut, pinched off like a factory cut, or a hack job. You could probably get set of stock springs, or lowering springs, and a set of new KYB shocks and be better off. You also have anti-sway bars front and back, which will firm up the ride. I don't know a lot about how to mess with those.

Found a picture from the Arizona Z Car site. Lot of images though, don't click unless you have time. Grabbed a picture. http://www.arizonazcar.com/cars.html

I don't really know how that site works. It did tell me that the Whitehead link was saved one time on January 28, 2013. Probably by me in a Hybridz thread. Arizonazcar was saved 107 times and none of the old snapshots show the diff mount. It was referenced in the other thread so the picture was there at that time. Not sure the Wayback snapshot shows the old data or the new.

It is a nice-looking car though. Too bad the photographer couldn't fit the whole thing in the frame.

Determine what parts you're running. Stock springs, cut stock springs, lowering springs (brand), "coilovers", shocks (dampers, struts), etc. All your picture shows is a car and some tires.

Just noticed that your picture in #5 has the center brace up to the body. That changes everything. I think that other stuff is in the way though, so not as simple as it seems.

Looks like the mount you're using is the TTT mount. Surprising that they sell that. https://technotoytuning.com/nissan/260z/complete-r200-r230-rear-end-conversion-z-car Arizona Z Car has (had?) another mount style. It had some minor issues, Word was that they were working on another design. Might be worth a call. Or you could fab up something similar. It puts the diff nose load perpendicular to pieces that can handle it. He used to have pictures on his site but they're gone now. Maybe working on a patent or something. Or maybe they have problems. Who knows. Here's where the pictures used to be - http://www.arizonazcar.com/lowarms.html Used to be here also - http://whiteheadperformance.com/1971-datsun-240z-restomod-rear-suspension-build-wilwood-arizona-z-car/#prettyPhoto Somebody's cleaning up their IP path.

This actually sounds more like an ignition problem. Put the points back on and see what happens. No need to buy a complete distributor.

Doesn't sound like an ignition problem. You'll be wasting money if you don't do some better diagnostic work. You'll get much better advice too if you add more information. "Mostly" stock 71 240Z with Crane XR3000 ran great now dies in neutral. Distributor has play. Not much to work with. Certainly not enough to go buy a new distributor.

That's for the short nose R200 or R230. Not a great design. The nose of the diff is lifting on a short lever arm, with the mounting bolts in to the frame as fulcrums (fulcra). It's been critiqued (criticized?) before. Make a better title, with the diff style in it, and a description and you might get some recommendations.

No pictures of the destruction? Guaranteed to get more responses. Assuming that you have an RTZ style mount and the bolts are tearing the holes? Or is it something else?

You missed my point. It depends on which type of 260 you have. And what you mean by "major": Can't tell what those last few words above mean. And the turbo engines come in 280ZX's. Another completely different body design. So if you're buying a 280ZX donor, the engine and drivetrain is about all you'll get out of it. Your project. You can research before you spend or after. Cheaper and more effective to do it before. And if you knew it was a common question, why ask it? Doesn't make sense. Just saying...