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Im thinking of buying a shift knob made of Delrin, how durable are they?
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Im thinking of buying a shift knob made of Delrin, how durable are they?
HI guys,
I currently have the OEM EVO IX MR 6-speed Aluminum shift knob, which I bought from USA to replace the leather stitched OEM gear knob.
As you may all be aware, this knob is fairly high price. But is extremely solid, durable and of quality construction. Being a metal, aside from receiving surface scratches from jewellery (people who wear rings), it would not only outlast knobs of other material but would probably outlast most of the car aswell.
However, my main issue I have had with it is; during every drive, I cannot but help thinking 'I wish this knob/gear-stick is at least 2 inches taller!'
So I would like to know anyone's experiences with Delrin knobs such as the AMS or WORKS shift knob. Which are advertised as Delrin, a hard-wearing plastic type material.
How long do they last and are they as durable as advertised?
Otherwise, if these knobs deteriorate after a short period, I may just buy an extender between the stick and the knob.
But I am trying to avoid this method to keep it simple and I notice that the OEM knobs have a pattern sticker covering the Allen-key, which is likely to be rendered useless after continuous removal.
I don't have either of the AMS or Works shift knobs but I can speak to Delrin. It is an incredibly wear-resistant material and will not deteriorate as long as you aren't trying to wear it down. It's a great material and doesn't get incredibly hot or cold to the touch as well.
Sorry I don't have any personal experience with the two knobs you mentioned but I have had delrin knobs before.
I have the binary engineering black delrin knob. Over a year old, still looks new. I don't wear any rings though, and I could see it getting scratched up if you wear rings...lol
I bought a used AMS with some scratches on it. I ended up just removing the paint and repainted the delrin. The AMS paint was easy to remove, but the delrin was solid and had no damage on it at all. I love the shift knob. It feels great, doesn't get too hot or cold, and its weighted.
As far as feel and weight goes it was great with the longer billy club shift knob. The only problem I had was that when you slam through the gears you have a chance of bending the inside of the knob since it is longer than the threads will reach. I ended up replacing it with a same length but metal shift knob. I prefer the delrin because it doesn't get heated up like the metal knob but just wish it was as durable internally as far as the threads go.
I think the ultimate shift knob would be delrin on the outside with a metal core. That way the shift knob will not get heated on the outside and the internal threads would be very durable able to take a lot of abuse.
I bought a used AMS with some scratches on it. I ended up just removing the paint and repainted the delrin. The AMS paint was easy to remove, but the delrin was solid and had no damage on it at all. I love the shift knob. It feels great, doesn't get too hot or cold, and its weighted.
Were you able to determine how it got the scratches?
what material is the threads? as a member has mentioned that if the thread is made of delrin, it may be the weakest part of the knob.
Originally Posted by hearnoevo
As far as feel and weight goes it was great with the longer billy club shift knob. The only problem I had was that when you slam through the gears you have a chance of bending the inside of the knob since it is longer than the threads will reach. I ended up replacing it with a same length but metal shift knob. I prefer the delrin because it doesn't get heated up like the metal knob but just wish it was as durable internally as far as the threads go.
I think the ultimate shift knob would be delrin on the outside with a metal core. That way the shift knob will not get heated on the outside and the internal threads would be very durable able to take a lot of abuse.
Maybe the Billy Club knob is inferior compared to other brand knobs?
how hard were you slamming? lol
Originally Posted by letsgetthisdone
You should not be slamming the shifter hard enough to bend a well made delrin shift knob...lol. Your trans and shift cables hate you.
well what attracts me the most about the AMS, is the height.
the positioning of the EVO gear stick is fairly low for a 'high performance vehicle'.
I've used the AMS one before, I didn't like it too much due to its size, so i found another delrin shift knob slightly smaller than the AMS one. Currently using it, but I miss the weighted shift knob so I see myself going back to that. http://shop.productinnovationsonline...5.htm?page=all
Lol I don't think it was so much about the slamming of the knob I think it had more to do with the fact that the knob screws in about an inch but the entire knob is 5.75 inches long so if the threads were deeper it would have been better. They make a billet aluminum version but they want a ridiculous price of $306.50 for it.
Were you able to determine how it got the scratches?
what material is the threads? as a member has mentioned that if the thread is made of delrin, it may be the weakest part of the knob.
My AMS knob has a metal sleeve insert with threads on it, so its very sturdy and I have no issues with it. I think the previous owner scratched at the shift knob. I dont think a wedding ring would cause the scratches that were on this shift knob.
My buddy let me use his AMS black derlin knob. Its big compared to the stock but does have a nice feel. I still like the oem but switch them up every once in a while for something different. I had to heli-coil the threads because it stripped out easy and I cant stand a knob that spins when you go to shift. The lettering is almost all worn off also. I would estimate it has about 40k on it haha. I do like how you can wrap your hand around it from the side so you never miss that 1-2 shift and it guarantees if you do, you damage your synchros!.