deja Posted November 6, 2014 Share Posted November 6, 2014 What is the size of the 4 bolts and nuts that hold the outer u-joint to the companion flange on a 280Z? Quote Link to comment Share on other sites More sharing options...
z240 Posted November 6, 2014 Share Posted November 6, 2014 They are 10mm x 1.25. 25 or 30 mm long. They have a shoulder that fits the hole very tightly. Generic 10mm bolts are loose fit. It is the clamping force that counts, make sure you use grade 8 SAE or 10.9 DIN bolts and torque correctly. Quote Link to comment Share on other sites More sharing options...
deja Posted November 6, 2014 Author Share Posted November 6, 2014 Thanks, any idea where I can get the shoulder type bolts? Quote Link to comment Share on other sites More sharing options...
nullbound Posted November 6, 2014 Share Posted November 6, 2014 Ebay has them, but ouch: http://www.ebay.com/itm/Datsun-240Z-260Z-280Z-1969-78-Axle-Driveshaft-1-2-Shaft-Bolt-Set-4-OEM-NEW-/321551340297?pt=Motors_Car_Truck_Parts_Accessories&fits=Model%3A280Z&hash=item4addf41309&vxp=mtr How many do you need? Quote Link to comment Share on other sites More sharing options...
deja Posted November 6, 2014 Author Share Posted November 6, 2014 Hey Ryan . Yeah I saw those. That's a crazy price for 4 bolts. I am switching half shafts from my 280zx to Wolf Creeks. I sold all the old 280Z u-joint parts but scored the diff half stubs and the companion flanges but I don't have the bolts for the companion flanges, I need 8 bolts, nuts and lock washers. I just ordered some bolts that will work but they are not shoulder bolts. It would be nice to have the right stuff but I'm not paying $100 for 8 bolts!!!! Quote Link to comment Share on other sites More sharing options...
beermanpete Posted November 6, 2014 Share Posted November 6, 2014 Nissan still sells them. Try the dealer. Quote Link to comment Share on other sites More sharing options...
NewZed Posted November 6, 2014 Share Posted November 6, 2014 If the aluminum adapters aren't machined to fit the shoulder tightly it won't matter as much anyway. If they are, the shoulders would be nice insurance if the nuts get loose. Might be worth asking Wolf Creek what they think. There could be other considerations on the bolt, like squareness of the head to the shaft and area of the clamping surface. Many inexpensive bolts aren't square and aren't made well. Quote Link to comment Share on other sites More sharing options...
nullbound Posted November 6, 2014 Share Posted November 6, 2014 Hey Ryan . Yeah I saw those. That's a crazy price for 4 bolts. I am switching half shafts from my 280zx to Wolf Creeks. I sold all the old 280Z u-joint parts but scored the diff half stubs and the companion flanges but I don't have the bolts for the companion flanges, I need 8 bolts, nuts and lock washers. I just ordered some bolts that will work but they are not shoulder bolts. It would be nice to have the right stuff but I'm not paying $100 for 8 bolts!!!! I may be able to round up a complete set that you can have. How quickly do you need them? Quote Link to comment Share on other sites More sharing options...
bfg Posted November 6, 2014 Share Posted November 6, 2014 I believe courtesy nissan has them but they are about 9$ a pop if I remember correctly. http://www.carpartsmanual.com/datsunS30/DatsunZIndex.aspx For reference I always use the site above to get part numbers and then check the Courtesy Nissan website for prices and availability. I've gone through and made a spread sheet that another member started. It has all the suspension PNs, threading, sizes, etc. if anyone is interested. Just PM me your email. 1 Quote Link to comment Share on other sites More sharing options...
deja Posted November 6, 2014 Author Share Posted November 6, 2014 I'll try the dealer, but the last time I went there and mentioned a 280Z the parts dude looked at me like I was crazy! Quote Link to comment Share on other sites More sharing options...
deja Posted November 6, 2014 Author Share Posted November 6, 2014 I believe courtesy nissan has them but they are about 9$ a pop if I remember correctly. http://www.carpartsmanual.com/datsunS30/DatsunZIndex.aspx For reference I always use the site above to get part numbers and then check the Courtesy Nissan website for prices and availability. I've gone through and made a spread sheet that another member started. It has all the suspension PNs, threading, sizes, etc. if anyone is interested. Just PM me your email. Awesome site, how is it I never saw this in the past 9 years, LOL! I went to Courtesy and saw the $9 bolt. I have never bought anything from them because of their prices. Quote Link to comment Share on other sites More sharing options...
deja Posted November 6, 2014 Author Share Posted November 6, 2014 I may be able to round up a complete set that you can have. How quickly do you need them? Not tomorrow but soon, LOL. Let me know if you find any. According to Wolf Creek they have a 14 MM head, the ones I saw at ACE were bigger than that. Quote Link to comment Share on other sites More sharing options...
TimO Posted November 6, 2014 Share Posted November 6, 2014 Try ttps://www.belmetric.com Quote Link to comment Share on other sites More sharing options...
deja Posted November 6, 2014 Author Share Posted November 6, 2014 If the aluminum adapters aren't machined to fit the shoulder tightly it won't matter as much anyway. If they are, the shoulders would be nice insurance if the nuts get loose. Might be worth asking Wolf Creek what they think. There could be other considerations on the bolt, like squareness of the head to the shaft and area of the clamping surface. Many inexpensive bolts aren't square and aren't made well. The holes don't appear to be machined to have the should bolt to fit tight. Wolf Creek says to use the stock bolts. Quote Link to comment Share on other sites More sharing options...
deja Posted November 6, 2014 Author Share Posted November 6, 2014 Try ttps://www.belmetric.com The head on their 10mm bolts is too big, 17 mm, I need 14mm. Nice site though. Quote Link to comment Share on other sites More sharing options...
deja Posted November 6, 2014 Author Share Posted November 6, 2014 Nissan still sells them. Try the dealer. Yikes!!! I just got back from the dealer. They did not have them in stock and if they did they are $12 a bolt. I guess Courtesy's $9 a bolt isn't they outrageous after all. Quote Link to comment Share on other sites More sharing options...
bfg Posted November 6, 2014 Share Posted November 6, 2014 occasionally you'll get lucky with prices on Courtesy. I ordered all my bolts for my suspension rebuild from them and it came out to be 75$ which I didn't think was too bad. Stuff like the half shaft bolts I reused and just bought new nuts and washers. I had a couple sets of half shafts that had those bolts on them. I may be able to round up a set as well. Thing is I may not be anywhere near those parts until next weekend. I'll let you know if you haven't found anything until then. Quote Link to comment Share on other sites More sharing options...
deja Posted November 6, 2014 Author Share Posted November 6, 2014 occasionally you'll get lucky with prices on Courtesy. I ordered all my bolts for my suspension rebuild from them and it came out to be 75$ which I didn't think was too bad. Stuff like the half shaft bolts I reused and just bought new nuts and washers. I had a couple sets of half shafts that had those bolts on them. I may be able to round up a set as well. Thing is I may not be anywhere near those parts until next weekend. I'll let you know if you haven't found anything until then. When I converted to 280zx CV half shafts I sold all my stock 280 parts. Now that I'm switching to Wolf Creek I had to but it all again, LOL. Hard to believe these bolts are that hard to find. Hopefully nullbound will be able o find some, he's local and a friend. I will post here if I find what I need so you won't look for nothing. Thanks. Quote Link to comment Share on other sites More sharing options...
beermanpete Posted November 7, 2014 Share Posted November 7, 2014 Don't skimp on these bolts. A failure could cause serious damage.These bolts are high grade and have a specific shoulder size and head size. You are not going to find them at the local hardware store or on-line from a hardware "specialist". If you want to try to save a few bucks perhaps you can find some used OE parts at a salvage yard that are in decent condition or on e-bay. At least they will fit correctly even if you are not certain about their service history. Quote Link to comment Share on other sites More sharing options...
thomas461 Posted November 7, 2014 Share Posted November 7, 2014 Dale, If you gave me the bolts when you sold me the axles I still have them. I struggled to find them as well and bought them new from Kameari in Japan. They were cheaper that day because of the exchange rate. Pete Quote Link to comment Share on other sites More sharing options...
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