my dads 87 4runners came loose then one week later mine nearly fell off got it home parked in the drive way took a look had one faithfull bolt holding it all on took that bolt off and threw it in the glove box its my lucky bolt now

 

where did you buy new bolts at?

 

If you don't want to go the dealer route, Marlin carries them for a bit less money:
- http://www.marlincrawler.com/hardwar...lange-bolt-m10

 

Geeez that is scary. I never want my drive line to fall off! Glad you and your truck made it out okay!

If you are looking for some used drive lines, we've got a ton of them, ummm literally and we'll gladly sell you just a yoke/slip

 

wow, I've never seen so many drive shafts haha. Redneck Heaven. I may have to buy a spare front and rear drive shaft. Thanks BigMike

 

Sounds good! We used to sell a lot of used shafts but we've recently slowed down with them because of how much time it takes to find just the right length for the customer. So please don't expect us to find you an exact match because these are just being sold as useable cores.

Hopefully also they haven't all rusted up yet LOL Send me a PM with what you need and I'll check if we can set you up with a good match. This way our sales guys don't have to run out back in the middle of your phone call.

Thanks!
BigMike

 

well I had to go ahead and buy some grade 8 bolts. Everything seemed to work fine and vibrations or anything. I'm just going to use these bolts until next week then i'll order some from marlin crawler

 

I know who to call when I need another driveshaft!! Lol!

Long story short, the same thing happenend to me only a few miles from home...we had a welder, so I welded whatever I could....Drove around town for weeks before fixing it haha.

Anyways, Loews has grade 8 hardware that I used and never had any problem with...even got nylon lock nuts!

 

i just ended up using grade 8 bolts with tread lock. Seems to hold up good, knock on wood haha

 

The American grade 8 is equivalent to the Metric grade 10.9. The stock drive line bolts are a metric grade 11 so I'm sure your grade 8 bolts are basically the same thing

Toyota OEM factory bolt: http://www.marlincrawler.com/hardwar...lange-bolt-m10


BigMike

 

BigMike, any drawbacks to using SAE and not metric? As far as a slightly different size 3/8 vs 10mm? 3/8" is slightly smaller then 10mm.
Also aren't most SAE bolts that are that short normally threaded to the head and/or have much shorter shanks which would somewhat degrade that grade 8 rating?

 

Same thing happend to me

 

Definitely having the shoulder makes for a stronger bolt since it has a larger cross section. I believe what's most important is how the friction force between the two flange faces will be greater than the combined shear strength of the bolts. So as long as you can install and torque the fasteners to the factory specification, you are guaranteed proper friction loading between the two faces. This is why we always touch up the faces of flanges on our belt sander when we do installations. The contact area of the two faces is the key.

Just image loosening your flange nuts a bit and then doing a burn out. You'd be far more likely to shear all four bolts than if they were torqued in place and could rely on the friction between the two flange faces.

I can't really be impartial to this because I like to keep my metric truck metric using only JIS hardware where ever possible. So you won't find me using American flange bolts, not because they are a better choice or not, but because they are not OEM.

BigMike

 

The friction point is a great explanation didn't think of that. Thanks. Makes perfect sense.

 

. I live in Tennessee, where are you?

 

He lives in 2011, when this thread was made...

 

haha, thanks for the offer though