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What is a reasonable price for a good used Transaxle?


Legends21

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I am looking at a few used transaxles (non Turbo) that have the short 5th gear in them. All of them seem to be high mileage units out of salvaged cars. What is a reasonable price range I should expect to pay for a good used transaxle?

 

Thanks in advance for your help.

 

Dale

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I've been paying $200-$300 for them out here in SoCal, which has a market saturated with Porsches. The short 5th gear could add a couple hundred to that price. I picked up an early 8Q tranny (LSD) without the short 5th, for $800, but I believe the local current market value is around $1000 to maybe $1,200?

Consider the time spend to swap the tranny with the time spent to swap the 5th gear pair, then install the tranny.

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...

Consider the time spend to swap the tranny with the time spent to swap the 5th gear pair, then install the tranny.

 

Tim:

 

It seems that I have been talking to the wrong people on the east coast! They are asking a bunch more of their transmissions!

 

Also, I am confused about your last sentence. I was assuming that I would have to pull the transmission to replace the 5th gear set. Is it possible to make the change while the transaxle is still installed in the car?

 

Thanks.

 

Dale

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I've been paying $200-$300 for them out here in SoCal, which has a market saturated with Porsches. The short 5th gear could add a couple hundred to that price. I picked up an early 8Q tranny (LSD) without the short 5th, for $800, but I believe the local current market value is around $1000 to maybe $1,200?

Consider the time spend to swap the tranny with the time spent to swap the 5th gear pair, then install the tranny.

 

Not advisable to just purchase an OEM and put it in the car... after all these are 20 year old diffs with worn out friction plates... If ou are going to spend the money on an OEM LSD... at least rebuild it, if not upgrade the friction plates....

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Yes, gotta agree with Jim on that last point if it's an LSD equipped tranny. But I was talking about the labor and cost difference of finding a used 924S or 88 944 tranny, which has the short 5th, and doing a direct swap vs. removing your tranny, swapping the tall for a short 5th, then reinstalling the same tranny. You can't change the gear pair with the tranny in the car.

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I bought an '88 tranny from a junk yard so it had the short fifth gears. I bought a Guard 80/50 LSD and had it professionally installed. While they were in there they replaced a bearing but the synchros were fine. I paid a shop to R&R the tranny but the tranny work was done by a specialist shop that does racing trannys for Porsche.

 

Total bill ..... $3,100.00

 

Labor was a small part of this bill.

 

It works great and I'd highly recommend you do it right and do it once.

 

I sold my original tranny for $200 to a fellow racer who used it to do exactly what I did.

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I bought an '88 tranny from a junk yard so it had the short fifth gears. I bought a Guard 80/50 LSD and had it professionally installed. While they were in there they replaced a bearing but the synchros were fine. I paid a shop to R&R the tranny but the tranny work was done by a specialist shop that does racing trannys for Porsche.

 

Total bill ..... $3,100.00

 

Labor was a small part of this bill.

 

It works great and I'd highly recommend you do it right and do it once.

 

I sold my original tranny for $200 to a fellow racer who used it to do exactly what I did.

 

So Guard LSD approx $2000 and install aprox $500, gearbox $500

 

Is that about right? I have a spare 88 open diff box that one day I want to put an LSD in. Are those numbers about right?

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Your numbers are very close.

 

You will learn to drive the car all over again after you do this. The car with the Guard LSD is far more capable and you will eventually adjust your driving style to get more out of it. I was amazed how different the car handled under braking.

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Anybody know how the stock lsd compares to one that is guard equipped?

 

Really there are two different questions here...

 

1) How do the Diffs compare? They don't. The guard is way superior... It is adjustable, has 4 discs instead of two and is much better (billett) construction..

 

2) Which will make my car faster....

 

Depends on how well you drive... A great driver will go as fast in either... A good driver will be comparable... an average (or less) driver is going to go faster with the Guard....

 

If these cars were 300HP, the guard would ALWAYS be faster, but with only 135 a good driver can keep the rubber down on all but a few corners...(like 2 at BW....in the rain...)

 

Frankly NONE of these should be legal....remember? Is a drivers class....

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I think in a time trial situation I'd agree that a great driver in a momentum car could get similar results from the two LSDs, however in a race situation I would disagree with Jim. The Guard has more lock under acceleration and deceleration, which allows you to throw the car around much more abruptly and not give up as much momentum as a lesser LSD. This is very valuable in race situations, even for a great driver, where you're not necessarily running your fastest laps.

 

I'm sure someone else knows the answer to how much lock a stock LSD has, but I would guess it is on the order of 40/20. You would never use an 80/50 LSD on the street.

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The Guard has more lock under acceleration and deceleration, which allows you to throw the car around much more abruptly and not give up as much momentum as a lesser LSD.

 

oh my close friend....

 

1) A properly tuned and slightly over-torqued OEM LSD will be 45-50% acceleration...

 

2) If you are "throwing" these cars around... you are not driving at 100%... TT, Race, Whatever... They are momentum cars....

 

3) I can only think of one turn in all of Southern California that I threshold brake.... so the deceleration (IMHO) is just not that important... and just for example, the driver that holds the track record at that particular track DOES NOT threshold brake..... anywhere.....

 

944 trivia question!!! What is the Track, What is the turn and who is the driver... (and what is the laden weight of a a sparrow....)

 

I will give one perfectly worn out Toyo and a hardy congratulations to the winner of this oh so silly trivia quiz....

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So, a $3,100 LSD is legal, but a chip and a header are illegal, humm, what makes for faster lap times? the LSD no question. So, if I am taking this out to the most logical conclusion then I MUST have the LSD to be competitive, but the chip and header at $300-$700 combined make the cars unequal? Man, I am REALLY confused now!

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I'm on vacation this weekend so am a little slow to respond. BTW - Sedona is beautiful. I'm thinking about buying a lot.

 

Jim - Since you mentioned Cal Speedway what about the decreasing radius at the start of the back infield straight away? Without my LSD I had to make a traditional turn with a late apex and ease on the gas. I would get passed by every car except a 944 with an open diff. With my Guard LSD I got very comfortable flying down the right hand side passing many different cars under braking (and most all the spec cars ) . I would brake very hard until the rear end would start to come around and then I would get on the gas very hard. I would take a very tight line. It was a great place to pass a lot of cars.

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