A fe Questions

[albersj51]

Tim_Smith: You were absolutely correct! The flange bolts were not tight! I think the gunk that had built up was making them tight. When I cleaned it I could easily tighten them again. All but one are tight now. Its as if the one that wont tighten starts to, then pops out again. Anyone know the size of these so I can try and find one at the hardware store as opposed to paying shipping and waiting a week? Thanks!

J

[albersj51]

Stomper: His book is for the Series III only, oh well. Thanks for the heads up though!

J

[bkreutz]

Take one of the good ones out and bring it with you to match (hopefully it's not whitworth), I would suggest going to a good auto parts store or bolt distributor (Fastenal for example) Most of the hardware store bolts are grade 2 (or less) I wouldn't use anything less than a grade 5 (which used to be the standard in hardware store, many years ago before the "big boxes" took over)

Tim_Smith: You were absolutely correct! The flange bolts were not tight! I think the gunk that had built up was making them tight. When I cleaned it I could easily tighten them again. All but one are tight now. Its as if the one that wont tighten starts to, then pops out again. Anyone know the size of these so I can try and find one at the hardware store as opposed to paying shipping and waiting a week? Thanks!

J

[albersj51]

Makes sense...I was hoping to keep all of them in so I could keep as much fluid in as possible, but in hindsight, taking one with me is the most logical idea. Thanks!

[Tim Smith]

Glad to have seen it.

Take one of the good ones out and bring it with you to match (hopefully it's not whitworth), I would suggest going to a good auto parts store or bolt distributor (Fastenal for example) Most of the hardware store bolts are grade 2 (or less) I wouldn't use anything less than a grade 5 (which used to be the standard in hardware store, many years ago before the "big boxes" took over)

Agreed. I have seen the bolts sheer off too but I suspect they were loose prior. If yours have been loose for a while, then it's probably best to replace them all. They should be a standard bolt in fine thread, not metric. Not sure of the size but I bet its 7/16 shaft size.

[albersj51]

Thanks again, Tim! Agreed, I'll be making a trip to the hardware store tomorrow...and getting Grade 8 bolts

[albersj51]

I was getting ready to drain and fill the rear differential on my 67 SIIA; found the fill plug (most important part!) and i THINK I found the drain plug. Can someone confirm that this is, in fact, the drain plug? If so, how on earth does it come off? Thanks!

[bkreutz]

That is the drain plug, what I use to remove it is a "drag link socket" it looks like a big fat screwdriver bit that fits on a ratchet. Not sure if they're made anymore, I've had mine for over 40 years. I imagine a big screwdriver would work (depends on how tight it is).

[albersj51]

you are a scholar and a gentleman! I'll search for a big fat screwdriver and see what I can do. I know my 15/16" socket fit the fill plug, which always comes off first , but felt a little loose, so I'll see if something else will fit better.

[yorker]

I was getting ready to drain and fill the rear differential on my 67 SIIA; found the fill plug (most important part!) and i THINK I found the drain plug. Can someone confirm that this is, in fact, the drain plug? If so, how on earth does it come off? Thanks!

I use a wrench for those. You simply stick the open end of the wrench into the slot and turn it.

[albersj51]

Thanks, yorker!

[greenmeanie]

Its as if the one that wont tighten starts to, then pops out again. Anyone know the size of these so I can try and find one at the hardware store as opposed to paying shipping and waiting a week? Thanks!

J

The flange bolts are 3/8 BSF X 1 19/32 so you won't find them at the hardware store. Pay your money and wait.

Before ordering take another bolt and try it in that hole. If that does the same then in all likely hood you have a stripped thread. If that is the case you can:
1. Try and find a BSF tap and see if there is anything to clean up
2. Find a second hand hub. Just be aware there are different ones so get one that matches the rest of te hubs on your truck
3. Drill all six holes, helicoil them and then go and buy imperial hardware from the store.

[albersj51]

Greenmeanie,

I am afraid you are correct, sir. The thread inside the hub appears to be stripped. I am trying to find a BSF helicoil, but so far no go.

Can you think of any possible negatives about drilling them out and going to a slightly larger standard/metric thread/bolt on that side only? Would this weaken it or cause the ride to suffer (I know, thats almost laughable ).

Thanks!

J