1998 Volvo V70 XC Bevel Gear

[SwedishMadeFunBrick]

Sorry, I was being pissy out of frustration and grogginess having just woken up and seeing I had wildly overslept.

I had included the photos measuring the seals just to drive home the point about the seals being different sizes. But from the sound of things it seemed as though it was a direct swap type of deal, one seal out, one seal in, then you can use the FWD axle with no need for the bevel gear collar to keep it from leaking.
That is apparently either not the case, or I am missing something (such as maybe I am supposed to remove the hollow splines short shaft that mates with the bevel gear collar then the seal fits deeper in the trans ?) Because as shown above, the seals are different ODs and even if that weren't the case, the seal wouldn't do too much if the sealing surface happens to be a splined shaft...

Or you replace the existing RH trans seal where collar inserts with the seal for FWD car and a RH front axle. The OD of the trans where seal fits is the same AWD or FWD. The ID is either for angle gear sleeve or on FWD it is a smaller ID for axle. AWD RH axle is not finished for seal in the right place so a FWD RH axle will need to be used. When you run with AG removed and collar fitted you have to concoct a way to keep sleeve in place and the RH axle will rust and never be useable for a convert back to AWD.

Jimmy57, there is the axle seal inside the splines shaft that engages with the spline of the collar, as pictured above. In your scenario, what is done about this component? Also, the OD where the seal fits as you mentioned, actually appears to NOT be the same AWD and FWD...

Unless perhaps I have the wrong trans..? Where can I check for a number to identify the model of trans I have is in fact an AW50-42LE?

[foggydogg]

Alas, the seal for the FWD is not the correct seal needed to allow me to run a FWD passenger CV axle without the need to have bevel gear collar to prevent leakage of ATF. Am I missing something? Looking at the transmission again now, and the seal that the collar rides in

I don't know of any way to put a FWD axle in without doing the loctite capture of the collar.
Try looking over here,
https://www.swedespeed.com/threads/98-0 ... gs.163864/
Robert has a couple videos about angle gear stuff, but mostly he fixes them instead of doing a workaround.
I think if I heard a noise like you seem to be describing here, I would make sure both axles are fully seated and the inner snap rings have captured them. I just went through that very thing on a new project car.

[rrres]

...When you run with AG removed and collar fitted you have to concoct a way to keep sleeve in place and the RH axle will rust and never be useable for a convert back to AWD...

"Ghetto" solution by someone in this thread...viewtopic.php?t=79549

20170121_121438.jpg (109.68 KiB) Viewed 248 times

[SwedishMadeFunBrick]

Alas, the seal for the FWD is not the correct seal needed to allow me to run a FWD passenger CV axle without the need to have bevel gear collar to prevent leakage of ATF. Am I missing something? Looking at the transmission again now, and the seal that the collar rides in

I don't know of any way to put a FWD axle in without doing the loctite capture of the collar.
Try looking over here,
https://www.swedespeed.com/threads/98-0 ... gs.163864/
Robert has a couple videos about angle gear stuff, but mostly he fixes them instead of doing a workaround.
I think if I heard a noise like you seem to be describing here, I would make sure both axles are fully seated and the inner snap rings have captured them. I just went through that very thing on a new project car.

Didn't think the passenger side uses a snap right to lock in. There is a bracket that bolts around a bearing on the axle shaft to do that.

As for the collar being glued or strapped in, yeah I was just wanting to avoid that as im not a big fan of trusting the two hose clamps, nor did I want to red loctite the collar into the transmission.

But I am basically resorting to using the sleeve in the transmission. Might play at fabricating a collar to weld to the fwd axle to contain the sleeve.

So do the axle and sleeve turn at the same rate? Also, should the spline shaft that the sleeve fits onto turn along with the wheels? I noted that turning my wheels did not turn that splined shaft at trans output, but the internal spline that engages the axle turns. Also I cannot turn that splined shaft by hand with or without the sleeve. If it SHOULD turn then perhaps there's my issue. But I'm assuming/hoping that there is some viscous fluid process that actually rotated the shaft to the angle gear sleeve.

[scot850]

I was thinking I could help with pictures for the difference between auto and manual RHS axle, but then realized both the ones I have are for 5 speed auto trans...........!

Neil.

[SwedishMadeFunBrick]

I was thinking I could help with pictures for the difference between auto and manual RHS axle, but then realized both the ones I have are for 5 speed auto trans...........!

Neil.

For what it's worth you can't fit a front wheel drive axle in the transmission even with keeping the bevel gear collar, as the axle is not long enough to go fully into the transmission to engage the spline before the diameter increases and the splined output shaft interferes

[Blacklab467]

Just read this thread, I think you should just do the hose clamp thing while you’re repairing your bevel gear, you may want to take it to a gear shop and have them change the bearings, etc. A new collar sleeve is about 100 bucks and seals are inexpensive also. The collar sleeve will not go anywhere with hose clamps on the CV shaft in the meantime. Did you say your BG splines were good?

[SwedishMadeFunBrick]

Guess my reply didn't go through... Yes bevel gear splines look good to me. I was going to built a bracket to act as a stop should the collar back out. But I ended up finding a shaft collar very nearly the perfect size to fit the cv axle shaft. It is smaller than the collar OD, though I would like it more if it were about as large as the collar OD... In any case, orange loctite on the trans side of the collar, holds well but should be able to remove without much fuss down the line, and this collar placed a small gap away from the collar, with loctite and a good torque on the set screw. Should hold nicely.

Photos of bevel gear splines that were supposed to be in my earlier reply:

20231221_192455.jpg (477.22 KiB) Viewed 208 times

20231221_192449.jpg (455.53 KiB) Viewed 208 times

And the collar on axle shaft:

20231221_211035.jpg (398.47 KiB) Viewed 208 times

[SwedishMadeFunBrick]

Looks like I was looking for the problem in the wrong place... Because even with no bevel gear I am still getting the sound of what I can only describe as teeth skipping when the car is in gear. The collar can't be the culprit as it engages very well with the transmission output shaft.

When the car is in neutral (not that it matters actually I suppose as both will spin in park as well...)when I rotate one tire the other tire spins of course, but say I rotate one wheel, then decide to change direction of the rotation or just grab the wheel to stop it. There seems to be play between the wheels. You can see and feel the other side keep rotating for a moment until it hits against the gears. That amount of play should be normal backlash I am hoping, right?

I guess I will do as suggested above and make sure the driver side is also fully seated after pulling the shaft to inspect the splines there.

[scot850]

That was what I was wanting to try to identify as to if there was any reason a FWD axle could not be used. Sounds like you already have the answer.

Neil.