Driveshaft.

6Stang7 · Feb 17, 2004

Well, I placed my driveshaft in, and it's too long. I heard you can replace just the slip yoke, but I don't see how that will help (the end of the yoke pushed the tail seal up againt the end of the tail housing). Is there any other way I can fix this problem, or do I have to get it shortend?
-Shaun

Route666 · Feb 17, 2004

Mate I'd say it need shortening

351LX · Feb 17, 2004

I have seen different lengths of rear end yokes so maybe that might work if you put a short one on.Another option is if you have a wrecking yard near you that has the parts sorted and on racks you can go there and find another driveshaft that is the length you need.Make sure the u-joints are the same size as well but there are some conversion u-joints available that have two different sized cups.I needed a shorter driveshaft for a 69 Mustang once and I was able to buy the length I needed at the wreckers for $25 which was a lot cheaper than having mine shortened.

allcarfan · Feb 17, 2004

whats the average charge to have a driveshaft shortened?

gp001 · Feb 17, 2004

We just had a steel driveshaft shortened and re-balanced for a buddy's car for just under $100

Fostang · Feb 17, 2004

Here it's steel $60 and aluminum $100. Shortened and balanced.

geegee · Feb 17, 2004

Don't make this harder than it really is; shortening a driveshaft is often less expensive than replacing the slip yoke. Here's what a light duty axle shop does:

a. Cuts off the yoke on the slip yoke end of the driveshaft
b. Installs a new yoke on the driveshaft, welds
c. Installs new "u" joints at each end
d. Balances the assembly

Cost about $90. Typical time to do it... 1 hour.

6Stang7 · Feb 17, 2004

If I did go out and buy a driveshaft, what car should I look for. I have heard people say that there driveshaft fit in fit, and didn't need nay modding. So why doesn't mine??? If it's the same year and all, then should a massproduced drivetrain have the same lenghts?

HistoricMustang · Feb 17, 2004

Hang on everyone.

How much too long is it and where did you have the rear jack stands? Correct me if I am wrong as it has been a while sense mine was out but don't the shackles rotate toward the rear of the car and the driveshaft actually moves out of the tranny as the car is lowered to the ground. If your stands are not on the rear end you may be getting a false reading.

Off course the downside is that if the rear wheels ever leave the ground the yoke will bump the tranny but that may be the last of your problems at that point.

Everybody help me out here!

HistoricMustang
www.historicmustang.com

crushnut · Feb 17, 2004

HistoricMustang said:
Correct me if I am wrong as it has been a while sense mine was out but don't the shackles rotate toward the rear of the car and the driveshaft actually moves out of the tranny as the car is lowered to the ground.

You are correct.

LMan · Feb 17, 2004

FWIW, my stock d/s fit fine. No shortening required, or cooking oil, for that matter

6Stang7 · Feb 17, 2004

THAT'S RIGHT HISTORICMUSTANG!!!!!!!!!! I totally forgot about that!!!!! Maybe it will work after all.

-Shaun

6Stang7 · Feb 24, 2004

Ok, here is a pic with the driveshaft in while the rear suspension is compressed. Do I need to get the driveshaft lenght changed?

http://www.livermoremuscle.com/Images/driveshaft1.jpg
http://www.livermoremuscle.com/Images/driveshaft2.jpg

-Shaun

Fostang · Feb 24, 2004

Yup thats way too close.

6Stang7 · Feb 24, 2004

Is the 3/4" to 1.5" suppose to be from the end of the tailshaft housing or the end of the seal to the base of the slip yoke? The messurement for the end tailshaft housing is 1.25", so if it is from the tailshaft housing, then I'm fine right?

-Shaun

Fostang · Feb 24, 2004

You don't want it crushing your seal now don't you? Right....

HistoricMustang · Feb 24, 2004

Shaun, for some reason I can't load the site. Sorry.

HistoricMustang
www.historicmustang.com

6Stang7 · Feb 24, 2004

Same here. I uploaded one of pics so you guys can see. I Found out that it is 3/4" to 1.5" from the tailhousing to the end of the yoke. Were is the end of the yoke excaitly? Is it were the shaft ends?
Edit: I added in two red lines. This is what I am messuring, which is 1.25"

-Shaun

6Stang7 · Feb 24, 2004

Fostang said:
You don't want it crushing your seal now don't you? Right....

The problem I see though Sal, is if I did shorten it, the base of the yoke would be too far from the tailshaft housing. Am I messureing wrong here?

-Shaun

Fostang · Feb 24, 2004

You can always replace the seal for a smaller one that doesn't have the additional lip.

Driveshaft.

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