A few of my friends have restored early (pre-1973) Porsche 911s. The trans to get is the 1972 and later Porsche 915 transmission. It has a

normal shift pattern (unlike the dogleg first gear of the early Porsche 901), and has a much longer life than the early 901 trans. The 901 was

used from 1966-1971 in the 911s.

I'm not sure what 915 transmissions are selling for, but one of my friends just bought a rebuilt Porsche 901 trans for his 1971 Porsche for

$750, outright. These transmissions held up to the power of the 180hp Porsche 911S in those years, so it should be more than plenty for you

application. Let me know how the conversion goes.

Keith

Keith Gilbert

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I need a tranny

Monday, 17-Jul-2000 19:11:48

Message:

209.77.89.85 writes:

Ok guys I want to hear your opinions. I recently called up Rancho Perf. about getting a short tranny 378 204 148 114 with 412

r&p along with saw hd axles. STICKER SHOCK!! Unfortunately I cant afford the $1000+ to buy the last piece of my 58 t1. SO

I want to know, if you couldnt get a Rancho tranny what would you get?

ps its a 2275 and sometimes on slicks(lots of hard driving=)

Matt in Sac(ramento)

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Replies:

Work some overtime....you will be glad you got it (Dave Conklin) (17-Jul-2000 20:26:39)

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Work some overtime....you will be glad you got it

Monday, 17-Jul-2000 17:26:39

152.163.194.193 writes:

Matt, I splurged on my gearbox and axles. I have the same ratios as you are considering behind my 9.75:1, FK-8 cammed 2276.

I love it. the gearing is awsum for a big motor yet it still allows me to drive short distances on the freeway (approx 4000 RPM

at 65 with my tall Firestone recapps). I have nearly $1100 in parts alone. I used the modified super beetle mainshaft from ERCO

with a 091 bus idler gear. All my parts came from ERCO and were assembled by Steve Beecher. I have been launching on the

street at 6000 RPM, spinning the tires for about 10 feet and then hooking hard. The gearbox hasnt whimpered yet. Look at it this

way.... Say you drive 2 or 3 hours to an event and break the gearbox because you cheaped out on a couple parts. Wouldnt it have

been worth a couple hundred more to be able to go a few more rounds or at least drive home under your own power. If you are

like the rest of us, you are going to flog that car. You WILL break a weak tranny. In my opinion, its worth it to limp around on a

stock tranny for a few months and drink cheap beer until you can afford to build the best tranny that you can reasonably afford. I

have never regreted building a tough gearbox (and Im a cheapskate =) Hope this gives you another angle to think about. Have fun

and launch off the limiter!

Dave Conklin

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Porsche 901 transaxles... Tuesday, 30-Jan-01 17:45:43 Message: 198.23.26.253 writes: I've had to learn the hard way about 901 transaxles. If you buy one, be sure it's all there (release arm, ball pivot stud and spacers, arm return spring). If not, you'll first have to figure out what you need (901/nn or 902/nn stamped on the bottom, where nn is two digit number for parts book reference). For example, there are five different release arms for 901's. Then you get to buy it - a new release arm will run about $450 from Porsche if you can't scrounge or make one. Gearset pairs are a tad expensive, too. For all that, it's worth it to me, but if you try to do one of these on a budget, be forewarned... george brown

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Replies:

You think that's bad? Wait till you need to rebuild it! Them thar syncros & engagement teeth is expensive,And the bearings... Can you say OUCH?Champagne taste on a beer budget. (n/t) (James Lutz) (30-Jan-01 21:12:45) Re: Porsche 901 transaxles... Hmmm, I gues that I'm darn fortunate. I bought a 901 4-speed w/ ZF limited slip, 4.83:1 R/P, 3.09/1.68/1.31/1.125 gear set from Ken Lowry, about 8 years ago, for $1400.00 I then had Dean Lowry give it the once over, get to get the cobwebs out. It was once in the Widowmaker Fiat. Also, I purchased from Dean Lowry, Joe Vittone's NOS 901 4-speed w/ ZF limited slip, 4.83:1 R/P, same gear set as the other but it had a 1:1 (letter T) fourth gear. Through Dean, I bought a NOS 1.04:1 fourth (letter S). Dean sold me this tranny for only $1500.00 + the cost of the new fourth ($160.00) + $$ for his labor & the gasket set. The sadest part is that it still sits in the Phoenix Headers car unused. But, this summer, I plan to run w/ Mark Reilly & the Outlaws. (n/t) (Chris Andrews - The Mailman) (31-Jan-01 00:44:01) George, my trans has the clutch release parts that you need. Let me know if I can provide any part numbers. I also have a source that can probably provide any of these items for a good price. Check out the type of release arm I have here: http://netnow.micron.net/~motodad/vw/trans.htm (n/t) (Steve Arndt) (31-Jan-01 12:29:01) I rebuilt my 911-01 box and had no problems at all. I prefer rebuilding these boxes to Beetle boxes. (n/t) (Mike Ghia) (31-Jan-01 13:16:07)