1970 911 01 5 speed transaxle

911Tfan · 09-07-2010, 05:32 AM

Hi does anyone know what rebuilt 19070 911 01 transaxles go for? who has them for sale?

Matt Monson · 09-07-2010, 06:01 AM

Try Carquip. 303-443-1343. Talk to Glen. I don't know what they are currently getting for one, but that's the kind of thing they usually have in stock.

john walker's workshop · 09-07-2010, 07:14 AM

yours is not fixable?

Grady Clay · 09-07-2010, 09:32 AM

John brings up the most important part – what is the problem?

901/911 transmissions are generally very easy to repair.
Is your 901/01 an exception?

Buying a good used transmission is difficult.
I recommend you have a knowledgeable shop inspect any you are considering and offer you a report – PPI for a transmission. This protects the buyer – you.

You don’t want one that was underwater in Katrina and has been sitting since. It can look just fine – on the outside.

Buying a proper transmission from a shop is necessarily pricy. Make sure you get a clear understanding of warranty. Choose the shop carefully, there are some that are very good. There are also some ‘Mickey Mouse’ crooks.

Best,
Grady

911Tfan · 09-07-2010, 10:11 AM

OK thanks! mine has a few chunks of metal the size of bbs that were stuck to the plug when i drained it. other than that its been pretty good.

cbush · 09-07-2010, 10:43 AM

sounds like some synchro teeth on the plug, but I am no expert. If it works fine, I wouldn't worry too much about it. It is certainly a candidate for a rebuild if you are worried about it. Would be less risky than buying a used one!

Matt Monson · 09-07-2010, 11:24 AM

Quote:

Originally Posted by 911Tfan

OK thanks! mine has a few chunks of metal the size of bbs that were stuck to the plug when i drained it. other than that its been pretty good.

Then I don't know that you need to be shopping for a whole new gearbox. I just assumed in my first post that you didn't have any gearbox at all.

Does yours exhibit any shifting issues that could help us guide you towards what gear is in need of repair? This is definitely something that can be done as a DIY if you've got the facilities to drop your engine and tranny.

Grady Clay · 09-07-2010, 03:59 PM

911Tfan,

The usual ‘good advice’ is to stop driving your 911 until you repair the transmission. The reason is these are hardened pieces of steel circulating through the transmission until trapped by the magnet. If (when) these pieces get between the gears, they will damage the gear teeth. This doesn’t usually cause immediate massive failure but certainly will lead to a premature demise.

A couple more transmission oil changes may help get more pieces out. Removing the shift pivot (two M8 nuts) when changing oil may let you find more. You will need a new paper gasket (or O-ring), available from our host.

If the only problem is damaged engagement teeth, the repair is common to any 901/911/914 that needs syncro rejuvenation. That involves replacing synchronizer rings, engagement dogs and sliding sleeves as necessary. This is a straightforward DIY project.

Where do you live?
You will find helpful Pelicans and PCA members almost everywhere. Having available experienced eyes, helpful hands and a few special tools available makes things go smoothly.

Another possibility is to buy another 911/01 and ‘rebuild’ it at your leisure. It may take buying several and some earlier 901s in order to get sufficiently good parts. Many re-gear their 911/01 with ratios from earlier transmissions. You have gears A (11:34), GA (18:32), O (23:28), V (27:25), ZA (29:22). Commonly these are changed to A (11:34), F (18:34), M (22:29), S (25:26), X (28:24) for more ‘sporting’ driving. The trade-off for this mod is having the 911 a bit more ‘busy’ at highway speeds and a slightly lower top speed available.

Best,
Grady

joeblow · joeblow's Garage

Putting everything together for your average 901/911 type trans-axle overhaul, what do you expect to pay? Plus there are the tools to add in too I guess right? I am expecting to have to go through mine soon.

911Tfan · 09-08-2010, 05:59 AM

Thanks. I will try to remove the 2 shifter pivot nuts and i am already going to remove the drivers side, side plate around the axle because the bracket for the clutch cable is borken and i have a new on. I should see a lot more then. There has always been plenty of gear oil in in since i owned it but thats only 5 years. I think its possible that the pieces of metal could have been there for who knows how long. Fourth wines a little but not terribly and 1st has always needed me to be rolling to engage for the most part. I always decide if i am going to need first before i stop at a light or stop sign.