New Product: Precision Shifter Ball Cup
#31
Track Day
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1 for me too!
Last night I got in my car to go to work and the shifter was flopping all over the place. and its stuck in reverse. I'll have to come up with a temp. fix until yours are ready.
Last night I got in my car to go to work and the shifter was flopping all over the place. and its stuck in reverse. I'll have to come up with a temp. fix until yours are ready.
#32
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mine broke at the track, again a few races ago. originally breaking the very last lap after the checker (lucky) and more recenly after 90% of the race laps, so i still got points, but had to fix it for the next race. since the little screw on shaft (that threads to the shifter shaft) is only spot welded to the cup, its no wonder i breaks there. i cant see how one could pop off, but if that plastic insert was to get soft over time, i could see it happening. we just welded the shaft back to the cup with a big ugly weld. (the guy doing the welding was the tire guy at the track and he was aweful, but effective)
now im wondering, buy a spare, or this new product.
by the way, what is the deal with the jam nuts? once the ball cup is installed, how could the shaft move that is threaded into the shifter shaft? does the jam nut keep it from canting from side to side?
Just curious, as i didnt tighten it back up after my last track repair.
mk
now im wondering, buy a spare, or this new product.
by the way, what is the deal with the jam nuts? once the ball cup is installed, how could the shaft move that is threaded into the shifter shaft? does the jam nut keep it from canting from side to side?
Just curious, as i didnt tighten it back up after my last track repair.
mk
#33
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#34
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by the way, what is the deal with the jam nuts? once the ball cup is installed, how could the shaft move that is threaded into the shifter shaft? does the jam nut keep it from canting from side to side?
Just curious, as i didnt tighten it back up after my last track repair.
mk
In Carls version if I have interpreted the pics correctly ???? there is a different thread for the shaft end that goes into the ball and adjusts the play hence the need for the additional jam nut.
#35
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by the way, what is the deal with the jam nuts? once the ball cup is installed, how could the shaft move that is threaded into the shifter shaft? does the jam nut keep it from canting from side to side?
Just curious, as i didnt tighten it back up after my last track repair.
Just curious, as i didnt tighten it back up after my last track repair.
#36
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The Page is up if you would like to place an order:
http://www.928motorsports.com/parts/shifterballcup.php
http://www.928motorsports.com/parts/shifterballcup.php
#37
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Update:
They have just arrived in from our plater and are in stock.
Yellow-chromate plated for rust resistance. Same plating Porsche uses on OEM parts.
They have just arrived in from our plater and are in stock.
Yellow-chromate plated for rust resistance. Same plating Porsche uses on OEM parts.
#38
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Mine should be here tomorrow.![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
My shifting is already awesome with a new rear coupler and short shifter. This should be the shizzle when the new ball cup goes in.
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
My shifting is already awesome with a new rear coupler and short shifter. This should be the shizzle when the new ball cup goes in.
#40
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The product looks different than the original pics. Why is so much material removed from the final design? Is it going to stay put as well on the ball?
#41
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Carl,
You may wish to promote this item on the 993 board, for the forward shift rod uses the identical 928 p/n ball/cup, and runs into the same failure mode ( actually, it mounts 'upside-down', and also corrodes with collected water) I have already referenced this item to a specific 993 R&R before your stock was available.
I haven't checked, but the 964 series may use the same part too - PET6 will tell.
You may wish to promote this item on the 993 board, for the forward shift rod uses the identical 928 p/n ball/cup, and runs into the same failure mode ( actually, it mounts 'upside-down', and also corrodes with collected water) I have already referenced this item to a specific 993 R&R before your stock was available.
I haven't checked, but the 964 series may use the same part too - PET6 will tell.
#42
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Yes, this is already the 2nd design of the part - an improvement from the earlier pictures.
We found, as we started installing it on more cars - we discovered the post-85 cars have a little thicker collar around the torque tube at the point of the ball post that effectively makes the stalk of the ball post shorter.
So we had to remove a little more from the bottom of the ball cup so that it could rock left and right like it needs to.
The material we removed is all below the contact points with the ball. In other words - none of the material we removed did anything anyway - it is not any part that clamped it onto the ball. We were very carfeul about this, of course.
The part is still closed on both ends and much, much stronger than it needs to be (and a good measure stronger than the OEM part)
What has happened is the installation has gotten easier and the part has gotten better.
We found, as we started installing it on more cars - we discovered the post-85 cars have a little thicker collar around the torque tube at the point of the ball post that effectively makes the stalk of the ball post shorter.
So we had to remove a little more from the bottom of the ball cup so that it could rock left and right like it needs to.
The material we removed is all below the contact points with the ball. In other words - none of the material we removed did anything anyway - it is not any part that clamped it onto the ball. We were very carfeul about this, of course.
The part is still closed on both ends and much, much stronger than it needs to be (and a good measure stronger than the OEM part)
What has happened is the installation has gotten easier and the part has gotten better.
#43
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Well, it's in there now.
What a tricky job with so little room around the TT. The new unit does what it says and is "tighter than a crab's ***" when cinched up snug. I only have 10 test miles on it, but it works very well. I used some antiseize on the ball, and some red loctite on the lock nut.
Sorry, no pics, but I am just glad to be done with it. Not easy because of limited space.
While for most 928ers I wouldn't consider it a "must have" (for what it does removing slop), for the perfectionist it is worth doing.
p.s. all the slop was actually in my rear coupler (my ball cup had been replaced), and oem shifter. Any rotational play in the rear coupler is magnified at the shift ****...my old rear coupler seemed very good when it came out, but the new one really made a difference.
What a tricky job with so little room around the TT. The new unit does what it says and is "tighter than a crab's ***" when cinched up snug. I only have 10 test miles on it, but it works very well. I used some antiseize on the ball, and some red loctite on the lock nut.
Sorry, no pics, but I am just glad to be done with it. Not easy because of limited space.
While for most 928ers I wouldn't consider it a "must have" (for what it does removing slop), for the perfectionist it is worth doing.
p.s. all the slop was actually in my rear coupler (my ball cup had been replaced), and oem shifter. Any rotational play in the rear coupler is magnified at the shift ****...my old rear coupler seemed very good when it came out, but the new one really made a difference.
#45
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Carl,
I am just at this point on a 78 and will order one.
Now what about the rear coupler and the clutch pivot ball and cup. The car I am working on had tghe clutch ball break. Any super fix for that for a driver with a heavy foot.
Dan the Pod Guy
I am just at this point on a 78 and will order one.
Now what about the rear coupler and the clutch pivot ball and cup. The car I am working on had tghe clutch ball break. Any super fix for that for a driver with a heavy foot.
Dan the Pod Guy