Shift Coupler Question

[yundar]

Hi There.

Just a quick question on shift couplers. I went to replace my shifter bushings and the shift coupler this weekend. The cup pivot bushing and the bushing carrying the shift rod went in fine. When I removed the shift coupler I found that the splined shaft going into the shift rod was a different size than the one I ordered. I ordered part number 911 424 024 04 from Pelican. My car is a late 1974 911. The original shift coupler is smaller in diameter and about 1cm longer on the splined shaft.

Are there different sizes of these based on MY? Could I have an early one somehow? Perhaps I have an earlier trans? I have always thought the car was stock but I could be wrong.

Any Ideas? Thanks, Andy.

[mrehrer]

The coupler should be the same through 86 so you should be fine. Perhaps you need to further loosen the pinch bolt on the shift rod to accept the splined shaft. The length shouldn't matter as long as its properly adjusted.

[Cobra06]

I just went thru that last week in my 86, replacing a SC with a fine crack. New one from our host, splined shaft was almost 2mm larger and wouldn't fit into the shaft. Even spreading with spreading the shaft as much as possible by prying. Turned it on a lathe to make it a fit. Now with no splines, hope it won't work loose at some point, but it's still very tight and needs some muscling to adjust. ??

[ivangene]

944 uses a very similar coupling with a different dia shaft - maybe a mix up

BTW - anyone have old, used, worn out or broken couplers - I am interested in them - willing to pay for them depending on condition - I can re-use them and put them back into service - even if its just parts from a broken one

[Cobra06]

Maybe that's it Ed, in fact I installed your bushings in the new coupler and they were a tight fit, not diameter but where they contact the shaft even fully seated.
I have some pieces around that I can dig up for you.

[ivangene]

I dont have any 944 ones to measure - but I would be if it was 2mm too large in dia - there are other things different - but that would be a guess

I dont think turning it on the lathe is a horrible idea - I think it will work just fine - just if you notice changes in the shifting - readjust it befor starting a "is my trans bad" thread

but I dont see why it would move if it was snug and you cinched it up with the clamp

I have a different shift tower in my car this week for testing and think I need to adjust my coupler - I haven't moved it in several years and just hate to mess with it - but I may have no choice - having trouble in the 1-2 plane getting a smooth movement - I am hoping that's the "issue" with it - I am even trying to think of an adjustment "tool" for fine tuning just to avoid the simple task of moving it a 1/2mm - geez - I am SICK!

[yundar]

Hmmm... The one I ordered is definitely not the same as what came out of my car. Maybe it is a 944 one and it was in the wrong box? There is no part number on the coupler itself just on the box. It is not even close enough to "force" it, not that I want to do that! Does Pelican have any input on this? I have never gotten a part that doesn't fit from here before.

Thanks again, Andy.

[86911tlcab]

send back the new one...buy a set of brass coupler bushings and rebuild the old one...very easy to do and will work like a charm...

[ivangene]

or send me your old one and I will rebuild it for you

if the one you got doesnt fit - return it

[timmy2]

I highly recommend sending the new one back and sending the old one to Ivangene. He rebuilt mine and it works better than ever.

[80-911SC]

Originally Posted by 86911tlcab

send back the new one...buy a set of brass coupler bushings and rebuild the old one...very easy to do and will work like a charm...

why would you go with BRASS when better options are available ???

I also agree with timmy ... send the other one back to pelican and then send your original to ED and have him re bush it ... you can order the bushings from him ala' carte also if that is your preference .... he has a good video available to walk you thru the process ....

Steve

[timmy2]

Search the coupler whisperer.

[Stutzdriver]

Just did the "Coupler Whisperer" bushings on my 1984 911 coupler....amazing difference and easy to do! The originals were really screwed....

[yundar]

Sounds like Ed might be the way to go. Ed, I see you are in Bellevue. I am just outside of Bellingham. Maybe I can send you my coupler or get some bushings. The part seems to be in good shape other than the bushings disintegrating!

Thanks, Andy.

[yundar]

Ok! Just watched the video. Don't know why I didn't do that in the first place. Thanks Ed! A "couple" (ha) more questions though... Are the plastic bushings the way to go? From Ed? What is wrong with the brass bushings? Seems like they would be more solid. Does anyone have any experience with the aftermarket couplers like the Stomski or Wevo? Are they worth the upgrade?

Thanks, Andy.

[80-911SC]

Originally Posted by yundar

Ok! Just watched the video. Don't know why I didn't do that in the first place. Thanks Ed! A "couple" (ha) more questions though... Are the plastic bushings the way to go? From Ed? What is wrong with the brass bushings? Seems like they would be more solid. Does anyone have any experience with the aftermarket couplers like the Stomski or Wevo? Are they worth the upgrade?

Thanks, Andy.

Brass wears fast .. (ed's are not plastic) derilin doesn't wear quickly...(spell check)
the stock ones in your car lasted for 20+ years (ed's are better) technology changes

the wevo .. if you have an extra two or three hundred bucks to shoot .. might be for you ....

[ivangene]

not to turn it into a debate - but derin is amazing - after 3 years and maybe 30+ track days plus 40k street miles mine has worn an immeasurable amount

brass is old school method that convinced me it was OK to go with something more precise and since it had been done for 40 years...if done right would not harm the transmission

naturally - making your own is always an option AND why I started making them...wanted better, didnt want to spend $200 for a Wevo (which BTW is an awesome product!)

[86911tlcab]

the brass bushings sold by our host work fine and are an easy purchase and install...I have used the stomski coupler in a few cars and happy with that as well...if the orig lasted 20 years...am sure the brass ones will last longer...