High Performance CV & Axles - Page 2

GaryW · 01-05-2003, 03:27 PM

Resurrecting this thread...

B,

Did you ever get a chance to check the year on the 911 axles that fit? My axles apparently have given up the ghost, so I'm looking for the right ones. Right now I'm running the early 911 stubs with 914 axles and adapters for the stubs. Pelican lists two flavors of early 911 axles: 65-68 or 69-73. The 65-68 are the Lobro CVs, but you thought maybe the later ones?

TIA, Gary

soloracer · 03-02-2003, 03:46 PM

Just bumping this thread to the top. I have a 915 transmission and the car has been converted to 5 bolt hubs. But the car has no axles or CV joints. If I read correctly I should be able to use 911 axles and CV joints or stubs. I'm just looking for a confirmation on the axles, etc. I should pick up for a car with over 350 hp.

Thanks,

Erik

mike95125 · 03-02-2003, 05:31 PM

I have my 70 911 axles, and hubs for sale on ebay right now because I couldnt afford the alternatives.
Alternative one: Use 914 shafts, and 914-6 stub axles ($$$$)
Two: Use 911 axles, hubs, and adapters for the out put flanges. ($120 for the adapters, but need a cv joint +$90)

If you are running a 915 then you wont need adapters, and yes you could/should run the 911 axles. Your lucky

soloracer · 03-02-2003, 06:21 PM

I think I found your axles but do they have to be rebuilt? Will they handle 350-400 hp? I took a measurement of the output flange on the transmission and it appears to be 100mm in diameter. I also looked at the trailing arms and it appears as though the outer CV joint is supposed to be inserted into the large hole in the trailing arm. Will there be a problem fitting a 911 CV into the trailing arm?

Dave at Pelican Parts · Dave at Pelican Parts's Garage

There shouldn't be a problem with it.

The 914 axle shafts are longer than the 911 ones. I heave heard from different sources that this is a problem, and also that this is not a problem. I haven't tried it myself, so I don't know for sure...

You might try contacting Sway-A-Way and see what axle shafts with 915 splines in the 914 length will run you.

--DD

mike95125 · 03-02-2003, 09:33 PM

solo,
You will need to purchase one inner CV, and the others are useable, but you should always clean, and regrease, as well as inspect. If I had the CV, I might have used them, but I dont wish to mess with these (money is more important right now).
HTH

soloracer · 03-02-2003, 09:36 PM

Thanks Dave. I just checked my transmission and it has the part number 915 301 102 OR on it. Does this tell you anything more about it? I assume this confirms it is a 915 transmission because of the 915 start to the part number.

Also, are the early 70's 911 shafts and CV's strong enough to support 400 hp? If not which ones would you recommend?

soloracer · 03-02-2003, 10:57 PM

I had another thought and went into the garage to count the holes on the transmission flange. There are 6 bolt holes on the output flanges of the transmission.

Then I took a look at the stub shaft (inside the hole on the back of the trailing arms) and there were six holes but it looked like only 4 were threaded. The two unthreaded ones were exactly opposite each other.

Something tells me this could be a problem. I posted elsewhere about the rear 5 bolt conversion that was done to this car. Because the car has 911 rear rotors I assumed the rear hubs were from a 911. Is this possible with the stub shafts that are in the car? Was there a difference between the early and late 911 stub shafts?

mike95125 · 03-02-2003, 11:35 PM

That is the way the 70 911 ones I have are. 4 threaded, and two studs opposite one another. The 911 inner CV has the six so you should be OK. My axles have the stubbys still attached, and it is as described. The only other possibility with a stock 911 hub is that the stubbys installed are of the 914-6 veriety. This means that they (the stubs) will hook up to the stock 914 axles, but if you have a 915 tranny the 914 axles wont work (unless you have some odd adapter).
HTH