308 Rear Stub Axle / Bearing Rebuild Questions

I was looking at the 348 torque specs. Sorry

 

Boy,

This is all starting to come back to me as I did it about 3 years ago, boy how time flies. First of all there seem to be several different flanges, hubs, inerds etc. I thought that I had put it together wrong but I think that I may have had parts from a transitional period. The 74gt4 has a different hub and NO seal, the 76gt4 (see pic#1) has a flange without the lip like Ricks but with a seal, this is like mine and did not last more than 3 years (see pic #2) and the 79 has a hub and flange like my 75gt4 but has a pressed on (?) spacer which my car did not have to hold the seal against the bearing plate (no pic of this). This allows the seal to wander, and well mine did wander!
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Next, I got my socket from Baum tools and it has a couple of holes to put a bar through, it also did not fit down in the flange without modifications, something I alerted them to several years ago, a cool guy from the Ferrari List submitted this mod that worked. We torqued it down by putting 2 wheel bolts in the wheel end then putting them in a vise. It required a big torque wrench and much force. However, Rick's socket is nice and he should make some more for the group BTW looks like you are doing a pretty cool job on that car!!
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Another note:

I replaced all my hardware with as many factory pieces as I could but decided to put a nylock nut on the front of the lower shock mount. This area comes in close contact with the upper control arm and needs (at least on my car?) a smaller nut. Still lamenting my lost seal and wondering if I could somehow cut and glue a new one on???

BTW the top shock bolt was very pretty if only anyone could see it!!!
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WOW! Nice job. OK, I have to ask.... Where did ya get those bolts for the shocks? Can I drill a hole in one and make a necklace? LOL!

 

Actually, Rick is the guy that did the nice job, mine is all dirty now! The bolts were from Ferrari the top bolt which is unseen has the horse, the bottom in plain view just well plain go figure! Another note: It looks like the 74 had a rubber seal inside the bearing plate in the exploded view. I am hoping that my bearing seals are good and that I never drive in any dust, etc ;-)

 

Nice work guys.
Hate dredge up an old thread, but can anyone tell me whether the spanner nut holding the axle flange on the rear uprights is right or left hand thread. Mine is TIGHT. I read above 169 foot pounds which doesnt surprise me having just spent an hour trying to remove it.
So whats the word, righty tighty lefty loosy or the opposite.

Thanks,
John

 

Hi guys, great thread...

Dredging it up again to ask about the ring nut tool. I've got my rear right upright apart (77 308 GTB USA) and I'll need to remove that 4-notch ring nut to remove the stub axle/flange...

Can I buy one from Baum or whomever that will work w/ no mods?

If not, can somebody rent/loan theirs to me for about a week?

Thanks,
Greg in Houston

 

Bump--please see my previous post..

In need of this tool...

Thanks,
Greg

77 308 GTB

 

Need a little advice,
77 308 GTB-

I've removed the ring nut and washer, now I need to remove the flange from the stub axle.

Does this just tap off the splines? Mine is very tight. I see no other item holding it in place..

Thanks,
Greg

 

If you have the nut and washer off, the flange should pull off. This is the time when a good gear puller set comes in handy. It's probably just stuck or possibly some Loctite wicked its way into the splines. Be careful about hitting anything. I usually try using a wooden block as a buffer when trying to drive something apart.

Remember this valuable tip.

"Hammer" is another name for a sort of "Divining Rod" used to locate expensive car parts near the thing you are trying to hit.

 

2NA,
Thanks, just managed to remove the flange, tapped it off using a rubber hammer.

Now, the larger question is--how does the stub axle come out? Does it also tap through the bearings and hub, or is there something else needing removal first? I've tapped on it a bit, but I don't want to damage it!

I've got the exploded view, table 39 in the spare parts catalog, and it shows nothing holding the stub axle in place at this point...

Thanks,
Greg

 

Can you post some pictures? I know that there is a snap ring inside holiding one of the bearings. I sort of remember after the back plate came off having to press some of the parts out. Dont force anything!

Rob

 

Rob,
The way it is now, there is no way to remove anything further. I've got the flange off, and now I'm just looking at the stub axle through the upright and both bearings. There is very little space between the outer face and the hub. I see no way to extract any further parts.

The replacement upright came with both bearings and the long center spacer left in. This says to me that the stub axle should press/tap out. Rest assured, I'm using a rubber hammer!

Attached are a few pix. The bottom one is the replacement upright.

I appreciate any advice on this...

Greg
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Press fit into bearings (probably a light press fit). You will need a hydraulic press, support the upright in the press so the stub axle can push straight out (axle parallel to ram). It might take a little creativity assembling the right blocking in the press but it is important to push straight and to support it well so as not to dammage anything. I would not advise trying to hammer the stub axle out of the bearings. Every blow of the hammer will peen the bearings against their races (not too good for them). You might find a local machine shop that could just do it for you. It isn't hard if you have the right stuff. When you are ready, they could press it all back together as well.

 

Thanks 2NA--Good advice..

So, there's no snap ring or anything holding it in at this point?

Greg

 

Probably a snap-ring retaining the bearings (maybe one on each side of the upright) but nothing on the axle but friction (the fabled "interference fit").

 

OK, thanks 2NA..

Helpful as usual..

I gotta find a machine shop around here (Houston Heights..?)

Thanks,
Greg

 

Sorry I can't help you more. Houston's a little outside my area (Bloomington, Minnesota). Keep me posted on how it turns out.

 

I you were closer you could use my press!

BTW how did that break?

Rob
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That picture is rubbing salt in the wounds

[It is cool though!]

cheers,
Ian

 

Now THAT, my friends, is what I call a PRESS!!


NICE!!



Greg