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This area is weakest link. Red lines are leak paths:

@Patcon If he's finding it difficult to create groups on these sites, I can offer him a group here on our site. We have a way to create mini clubs within our main walls and provide access to those who join. You can see a few examples here: https://www.classiczcars.com/clubs/ Each club can have their own set of members, a gallery, forums, etc (just like our main club). I'd offer it to him and the other members for no cost. Just let me know.. Thanks. Mike

Click your name in the upper right. Select Account Settings. Then click Signature from the left side and edit to your liking. Cheers! mike

I don't spend a lot of time on message boards lately, but found this thread and wanted to update folks that we have responded to the issues found with the WCR CV axle design. FutoFab CV axle kits are not just a continuation of the Wolf Creek Racing (WCR) design, they are significantly revised and improved FutoFab product. The first way to identify the change is the ORANGE axles. FutoFab acquired the rights to the WCR CV axle design and has made several changes and improvements to them. Our most notable change is the introduction of a second, larger and stronger axle kit for higher horsepower cars based on the Porsche 930 Turbo 108mm CV. FutoFab Type 2 / 100mm CV Kit Improvements We use the same CV size as the original WCR axles, but that is about the only similarity. The following are improvements we have made to this axle kit. The CV bolt holes are tapped directly into the adapter allowing use of LocTite. WCR used Helicoils in their adapters which can back out and cannot be used with LocTite. Our CV Bolts are now grade 12.9 - M8x1.25 socket head metric bolts. They are drilled to use safety wire, which we still strongly recommend doing. We use a torque distributing washer under the heads of the CV bolts to spread the clamping force. Each washer spans two CV bolts. The CV bolt lock washers are now a SCHNORR washer. They have a cone shape with one-way serrated surfaces for a greater locking force than the original lock washers. Since making these changes we have had zero complaints of the CV bolts loosening. FutoFab also changed the outer CV adapter design to help keep the bolts that attach the adapter to the companion flange tight. FutoFab's outer CV adapter has slots that captivate the head of the bolts that hold the adapter to the companion flange. This allows you to check that the bolts are tight (and tighten if needed) without having to remove the outer CV from the adapter. Noise Reduction and Improved Driver Confidence One of the biggest complaints FutoFab received about the WCR CV Axle design was the excessive amount of rotational freeplay within their system and the clunking noise it created. While operationally solid, it did not instill confidence that the WCR CV Axle was durable. FutoFab addressed this by minimizing the amount of rotational freeplay to nearly zero. And as a result, axle strength increased as well. We changed the CV’s to ones that have tighter internal tolerances. This decreased the CV’s internal free play to the absolute minimum. Our axle bars are now made from a larger OD, heat treated 4340 chromoly steel with custom machined splines. Each axle end is custom fit to the CV spline, further minimizing rotational free play. By using custom made axles we added a hard inner CV stop machined into the axle. This eliminated the inner C-clip and groove that WCR used. This change makes the FutoFab CV axle much stronger than the original design was. Detailed Comparison - FutoFab Type 2 / 100mm & Porsche 930 Turbo / 108mm CV Axle Kits: While both axle kits use the same basic design, they are unique in most every detail. Component Type 2 / 100mm Axle Kit Porsche 930 Turbo / 108mm Axle Kit CV 100mm OD with six (6) 3/4” balls 108mm OD with six (6) 7/8” balls Adapters 6061 Aluminum, natural finish 4140 Alloy Steel, satin black powder coat Drilled Socket Head CV Bolts M8x1.25, Grade 12.9, black oxide 3/8-24, Grade 8, black oxide Boots Bellows type w/steel base High Speed type w/steel base Axles, custom machined Heat treated 4340 Chromoly Steel Heat treated 4340 Chromoly Steel Axle Spline Count / Diameter 33 splines – 1.06” Dia. 28 splines – 1.20” Dia. Options ----- CV Upgrade – German made GKN / Lobro Porsche 930 replacement CV Targeted Horsepower * Up to 250-300HP Up to 650HP, possibly more *Targeted Horsepower - Actual use (or abuse) has more to do with durability than the horsepower a component may survive. The targeted horsepower numbers are offered above as only a guideline and in no way are to be construed as a guarantee of our CV axle kit’s capabilities. Picture attached is of our 930 / 108mm CV Axle Kit w/Lobro CV's

The rotors sure look like the same ones used in the Z Stage 3 Toyo 4 pot conversion that uses a four bolt Z31 vented rotor, spacer and the toyo truck wide calipers S12W. Haven't checked the PN yet, but I'll put money one it. The rotor is 270mm, pretty decent.

I enjoy the comradery here. A great bunch of misfits.... all of us! ?

I like this topic; Alan as you know. Along with MikeB, we discussed and collected through this topic for quite the enjoyable time! Alan, we are pretty much on the same page. Very little of the story adds up to what we have learned. My "photographic explanation" was rather lame. You make me laugh. Really, the obvious answer to the lack of photographs is that they just don't exist. Some of my best pictures come from Datsun USA quarterly publications. You never know. We may see something new. Blue, you are on a very good track and thanks for your postings. You don't need to colorize to prove your point. It is pretty much accepted that HLS30-00006 is the car. I was impressed with your Z-at-Daytona Hoovers by the way. Good find. I would be willing to bet that the California debut car was one of the Canada Test Cars. It was silver. The cars were in town. The NY car was flown out to LA overnight - NOT!

I bet he's remembering my post on how I came to realize I had almost no fuel in my chambers. I had starvation on my front carb driving up Mt Cheaha. I set my floats as the Ztherapy dvd suggested but they were using Grose jets when that video was shot. You can't do them that way with these needle valves. Just a guess though. I'm with you Mark, can't imagine setting proper levels going up a mountain.

For a full rebuild, shimming is not needed when you have access to tensioner and chain guides.

Dave.....Thanks for the update on your FutoFab CV axles. I certainly can attest to the fact that I have had zero problems with mine. Also, installation was a breeze and now, if I ever need to remove them, it is a ten minute job (just remove the 6 allen head bolts and you are loose). I have no noise and with well over 200 horses at the wheels, I feel like the strength is a big improvement over the old u joints. I guess there must have been some issues with the old WolfCreek design, but as far as I’m concerned, you’ve improved the product to perfection. The only thing I would suggest is some of your torque specs seem too high for the bolt sizes.....I wouldn’t want to break a bolt. Guy

Alan, some are very interesting points. Thanks! With respect to the recordings and recollections of events 50 years ago. Nissan is on record on their web site quoting Bob Sharp that HLS30-00006 was desired at the NYC Auto Show " I saw my very first Z car-a green one-at the New York Coliseum auto show ". Both Nissan and the Bob Sharp quote are in error. I will assume Bob was referring to the Oct 69 event rather than the April 70 Coliseum event as clarified by @gnozez who asked Bob about this. Likewise the photos of Ginza and the press driving event are a little uncertain as to the cars and locations of the photos. Since the COMPANY and CAR OWNER's are in error, how the heck are we to figure it out except by making reasonable assumptions...thus I stand by HLS30-00006 being coloured green and at the Oct show, and by having found 50% of the publicly known images of that car in 1969!!! As a request, and I'm sure many others here would welcome the info, could you please use your resources, knowledge, connections, and language abilities to find out about the cars HLS30-00009, 10, 11, and 12 as well as the test car flown to the USA in . Dec1969? We seem to know about all of the LHD early birds except these 5. Many thanks!

I’ve been researching the idea of Filling these holes. JB Weld, Devon Aluminum Epoxy and another product called Alvin Hi-Temp. They’re all similar product. I think I’ll try the JB Weld. I don’t think it would be a problem even if I left it alone because they are so minor. Sent from my iPhone using Tapatalk

At last the package arrived and has been installed. I used the ZX kit on my 510 with ZX struts and spindles. Great quality parts. Installation was a bit of a head scratcher. You definitely have to do the bolts "just so" and in the right order or they ain't going together. The bolt that attach the adapter bracket to the spindle have to put in "backwards" (in my mind) with the nut on the inside. Bit tricky to start that nut up inbetween the rotor and spindle, but it can be done. All in the name of a small caliper and tight spaces. I was able to give them some feed back to change one set of fasteners to hex rather than socket head to aid in the assembly. I've been able to fit all my 15's and almost all of my 14's (stock ZX alloy and standard 5 D slot mags). One set of Z steelies would fit with a bit of spacer. Can't fit a stock 13" 510 steelie though. I have a set of 13" classic Libra's that are on another car that I pray fit these brakes as well. I know those wheels just BARELY fit stock ZX brakes, so they "should" fit these. I even have a Nissan Sentra donut spare (15") that fits! And all testing was done with NO spacers. Got my dime jacked up a couple of inches and running a set of Yoko winter's on my Swaztika wheels. Been out bedding the brakes and setting bias. Gonna be FUN this winter.

And she's off to the paint shop! Will switch to part detailing here while Miguel starts work on the body.

Plan B. Lol

All finished. Took it for a test drive and it works perfect. No noise, no slack.....solid. Even when I let off and nail it, no play......I’m happy with Futofab CV shafts!