Driveshaft upgrade worth it??? - Page 8 - Ford Mustang Forum
View Poll Results: which Drive shaft is the best option
PST Alum 0 0%
DSS alum 68 39.53%
Dynotech alum 16 9.30%
Other 17 9.88%
Don't waste your cash 42 24.42%
Carbon or nothing 29 16.86%
Voters: 172. You may not vote on this poll

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Rotational weight?

Quote:
Originally Posted by mazroth View Post
O Every little thing will add up, and overall make for a much better ride, especially when removing rotational weight.
I do not wish offend anyone, but here is what I do not understand.

The lighter weight aluminum driveshafts are promoted as a way to reduce inertia so as to allow the driveshaft to get spinning quicker to allow faster take-offs.

But, ... you do not spin a drive shaft in isolation. A driveshaft is engaged with the differential so you are also pushing the approximate 3500 pound weight of the car while you are spinning the drive shaft.

When you consider the inertia of the car as a whole, why does the individual inertia of the driveshaft matter? I read where people say that they get quicker response with their aluminum driveshafts. The aluminum driveshaft does reduce overall weight by maybe 13 pounds compared to stock, but would that really make a humanly-perceptible difference in performance? That is the same weight difference as having two less gallons of gasoline in your tank.


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Last edited by ew1usnr; 02-27-2016 at 09:58 AM.
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+ You run the risk of a vibration problem,I will keep my 2 piece Ford drive shaft,to me it is just not worth it.

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I hate the annoying clunk of the stock setup, it's really bad on the wife's car. IF the DSS solution can fix the clunking without vibrations, it would be worth the $ for me. Luckley I live about 30 miles from DSS so I will eventually end up going to their shop and investigating. If I were to buy one and end up with vibrations, they could drive the car and possibly help work out any issues. They are very nice and accomadating according to the local Mustang motor-heads. So being local, it's probably a worth while move for me down the road. I'm not concerned about, nor do I expect any performance enhancements (except the possibility of reducing the clunk). If I had to do this by way of shipping, I probably wouldn't consider it.
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Quote:
Originally Posted by crjackson2134 View Post
I hate the annoying clunk of the stock setup, it's really bad on the wife's car. IF the DSS solution can fix the clunking without vibrations, it would be worth the $ for me. Luckley I live about 30 miles from DSS so I will eventually end up going to their shop and investigating. If I were to buy one and end up with vibrations, they could drive the car and possibly help work out any issues. They are very nice and accomadating according to the local Mustang motor-heads. So being local, it's probably a worth while move for me down the road. I'm not concerned about, nor do I expect any performance enhancements (except the possibility of reducing the clunk). If I had to do this by way of shipping, I probably wouldn't consider it.
That's great that you are right down the road from DSS. They were great in helping me with mine and it was all over the phone. It's always better going into something with no, or realistic, expectations but I'm confident you'll gain rear wheel HP (which you probably won't notice seat-of-the-pants wise) and the car will spin up faster (which you should notice, at least I did on mine). I'm very happy with my DSS aluminum.

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Quote:
Originally Posted by 02_GT_5spd View Post
That's great that you are right down the road from DSS. They were great in helping me with mine and it was all over the phone. It's always better going into something with no, or realistic, expectations but I'm confident you'll gain rear wheel HP (which you probably won't notice seat-of-the-pants wise) and the car will spin up faster (which you should notice, at least I did on mine). I'm very happy with my DSS aluminum.
Did this do anything to reduce the clunking?


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I have no clunking noise with my OEM or my DSS Aluminum shaft. However I do hear a high pitched click or tinging sound toward the back of the car (Similar to a bad u-joint but that shaft has CV joint at rear) sometimes when I change from going forward to backward. Maybe the opposite also. Just kind of got used to it and ignore listening for the sound. Been that way almost from the beginning after install if I remember correctly. I don't believe anything is wrong and the sound has not changed after 3 track events and a lot of launches at the dragstrip with drag radials.

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Both of my 14's clunk loudly unles VERY CAREFULLY manipulating the gas (for rpm range) & clutch pedals. The wife's car has been doing it since day 1. Mine just started doing the same at 8k miles. It sounds like very loose u-joint bolts (of course that's not the problem). Serious driveline slop.


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This guy says the 2 piece shaft causes the CLUNK......watch this!!

https://www.youtube.com/watch?v=xjYjbPP78x0
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I got rid of 90% of the clunk with Saftmasters. They were great and a good price. If your timing clutch and throttle perfect the clunk can be minimized. Sooner or later though a non perfect shift would happen and the clunk appears. I planned on keeping the car a long time so it was worth it to me.


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Why did this thread pop up to the top all of a sudden?

I have been wondering about some of the strange resurrections of old threads lately . . . I guessed that maybe people had searched and found the old threads, then replied to them . . . now I can tell you for sure, I did NOT search out and reply to this thread, where the last previous post was from 2016 . . . rather I saw it right at the top of the list, looking like a fresh thread with new reply.

weird . . .

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I have seen several strange things on this as well. It has been happening for the last 3 weeks. I thought about a cache problem and cleared but it did not help anything.


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MT with Redline MTL/ Brembos/355's/glass roof
Shaker 1000/Scoops/Clear bra/Steeda UCA and PH bar
Redline hood lifts/Bilsteins with Ford Racing P springs & axle bks
UPR catch can/whiteline kdt928/MGW shifter with Epco ball
Shaftmasters DS/BMR loop & relocation brackets
Nitto 555 G2's/Steeda jack rails
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My guess is someone probably did a search on drive shafts and this survey came up and they only put their vote in but didn't submit a reply.

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