ok, wow driveshaft length chart problem

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Princess Valiant

Princess Valiant

A.K.A. Rainy Day Auto
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I google to find the driveshaft length for a 72 dart if I put a 904 with an 8 1/4.

This chart comes up repeatedly on a Google search on many mopar sites and the problem is that it lists the same application (highlighted) with the different measurements, so how accurate is all this.

Even still on any google search I still cant seem to find any dart body with an 8 1/4 and 904. :protest:


Here is some info:
This is a chart of common 1966 and later RWD Mopar slip yokedriveshafts. It is sorted by length to help with interchange.
Mopar Slip Yoke Driveshafts PartNo Years Dia" Length" Trans Rear Engine Body
2883775 1970-71 3.25 42.60 727,833 9-3/4 426 440 Barracuda Coronet
2996134 1974 3.25 43.29 727,833 8-1/4 318 360 Barracuda
2883636 1970 3.25 43.60 727 8-3/4 383 426 440 Barracuda Coronet
2996134 1971 3.25 43.79 727/833 8-3/4 340 Barracuda
2883769 1970-71 3.25 43185 727/833 8-3/4 340 Barracuda
2883667 1970-71 3.25 44.60 727/833 9-3/4 426 440 Challenger Coronet
2883690 1970-72 3.00 44.99 727 8-3/4 340 Duster Demon
2883656 1970-71 3.25 45.60 727/833 8-3/4 340 383 440 Challenger
2996142 1971 3.25 45.79 727 8-3/4 340 383-2 Challenger
2883782 1970 3.25 45.85 727/833 8-3/4 340 Challenger
3578138 1974 3.00 47.40 904/230 8-1/4 318 Barracuda
2852228 1967-69 3.25 47.81 727 8-3/4 340 383 Dart
2883693 1970 3.25 47.99 727 8-3/4 340 Dart
2852206 1967-69 2.75 48.60 904 8-3/4 273 318 Barracuda Valiant
2852206 1967-69 2.75 48.60 833 8-3/4 273 318 340 383 Barracuda Valiant
2852216 1968-69 3.00 48.88 727 8-3/4 340 393 Barracuda
2996157 1972 3.25 48.89 904/230 8-3/4 225 318 Duster Demon
2883760 1970-72 2.75 48.96 833 8-3/4 340 Duster Demon
2883760 1970-72 2.75 48.96 904 8-3/4 198 225 318 Duster Demon
2883752 1971 2.75 49.27 904/833 8-3/4 198 225 318 340 Valiant
3578146 1973 3.00 49.40 727/833 8-3/4 318 340 Challenger
2996105 1971 3.25 49.50 727/833 9-3/4 426 440 Belvedere Coronet
2781952 1966 2.75 49.58 904/833 8-3/4 170 225 225 273 Barracuda Valiant
2996146 1971-73 3.25 49.89 727/833 8-3/4 318 340 Challenger
3467151 1973-76 3.25 49.90 904/833 8-1/4 225 318 340 360 Duster Dart Sport
2883779 1970-72 3.25 49.95 727 8-3/4 318 Challenger
2883766 1970 3.25 50.18 727 7-1/4 225 318 Barracuda
2781955 1966-67 3.00 50.27 833 9-3/4 426 Belvedere Coronet
2853247 1968-69 3.00 50.39 833 9-3/4 426 440 Belvedere
2996101 1971 3.25 50.68 727/833 8-3/4 383 426 440 Belvedere Coronet
2996109 1972-73 3.25 50.80 727/833 8-3/4 400 440 Belvedere Coronet
2852326 1968 3.00 50.96 833 9-3/4 426 440 Coronet Charger
2660628 1967 2.75 51.03 727 8-3/4 225 318 383 Belvedere
2781953 1967 2.75 51.15 727/833 8-3/4 426 440 Belvedere Coronet Charger
2660628 1966-67 2.75 51.28 745 8-3/4 225 273 318 383 Belvedere Coronet Charger
2996268 1974 3.25 51.34 727/833 9-1/4 360 400 440 Belvedere Coronet
2781953 1966 3.00 51.40 727/833 8-3/4 426 Belvedere Coronet Charger
2533192 1967-69 2.75 51.43 904/833 7-1/4 225 273 318 Barracuda Valiant
2852161 1968-69 3.00 51.50 727/833 8-3/4 383 426 440 Belvedere
2852212 1967-69 3.00 51.53 833 8-3/4 273 318 340 383 Dart
2996137 1973-76 3.25 51.89 904/833/230 8-1/4 225 318 340 360 Duster Dart Sport
2883758 1972 3.00 51.96 904/230 8-3/4 225 318 340 Dart
2660635 1967-68 2.75 52.00 727 8-3/4 318 383 Belvedere Coronet Charger
2852162 1968 3.00 52.07 727/833 8-3/4 383 426 440 Coronet Charger
2852118 1967 3.25 52.27 727 8-3/4 440 Charger
2660635 1966-67 2.75 52.28 727/833 8-3/4 361 383 426 Belvedere Coronet Charger
3467155 1973-76 3.25 52.70 904/833/230 8-1/4 225 318 340 360 Duster Dart Sport
2883696 1971-74 3.25 53.18 727/833 8-3/4 225 318 340 360 400 440 Belvedere Coronet
2996113 1974 3.25 53.30 727/833 8-1/4 400 Belvedere Coronet
2996195 1970 3.25 53.64 727 8-3/4 383 440 Belvedere
3578322 1974 3.25 53.80 727/833 8-1/4 400 Belvedere Coronet
3578331 1974 3.25 53.84 727/833 9-1/4 400 440 Belvedere
2853237 1967-76 3.00 54.36 904 7-1/4 170 225 273 318 Dart
2660622 1966 3.00 54.54 904/833 7-1/4 273 Valiant
2996201 1971-73 3.25 54.86 727/833 8-3/4 318 Belvedere Coronet
3578301 1974 3.25 54.92 727/833 8-3/4 225 318 Belvedere
2533148 1966 2.75 55.42 727/833 8-3/4 225 273 318 Belvedere Coronet Charger
2660550 1968-69 3.00 56.17 904 8-3/4 225 273 318 Coronet Charger
2660550 1966 2.75 56.42 904/903 8-3/4 225 273 318 Belvedere Coronet Charger
2660607 1966 3.00 56.61 904/833 7-1/4 170 225 273 Dart
2883735 1972-73 3.25 57.36 727/833 8-3/4 225 318 Belvedere Coronet
2996121 1972 3.00 57.42 727/833 8-3/4 225 318 Belvedere Coronet
2852253 1968-69 3.00 57.65 904/903 7-1/4 225 273 Belvedere Coronet
2996121 1974 3.00 57.82 727/833 9-1/4 360 Belvedere Coronet
2852222 1968 3.25 57.93 727 8-3/4 383 440 Chrysler
 
Why not crawl under the car and measure it to get an exact length? I had a new one made with my old slip yoke and it was not that bad price wise.....besides, a new driveshaft is better than a worn original.

Did a Dodge Dart ever come from the factory with a 8 1/4 rear? I thought only the 8 3/4 and 7 1/4 were the options?
 
Yep, I agree with Keith. Crawl under and take a measurement. Myself, its just piece of mind knowing the measurement I took under the car is correct.
 
well there is no rear under the car yet so I am just getting ahead of myself but I figured it should be as easy as a chart like this but I am starting to think this chart is a bit off, so best if others know before they go cutting a driveshaft to find out its not even close.
 
RaniDart70 said:
well there is no rear under the car yet so I am just getting ahead of myself but I figured it should be as easy as a chart like this but I am starting to think this chart is a bit off, so best if others know before they go cutting a driveshaft to find out its not even close.
Click to expand...

Well that poses a problem of crawling under and taking a measurement.... Sorry but I dont know anyone that has a 8-1/4 under there car. Wish I could help further.. best of luck Rani!
 
well this also begs the question for those with duster/demon/dart sport cars. Which one on the chart is the correct one for these cars?

the two I highlighted in blue are the same application...two different numbers.

And this chart is all over the web .....even on FBBO.
 
RaniDart70 said:
well there is no rear under the car yet so I am just getting ahead of myself but I figured it should be as easy as a chart like this but I am starting to think this chart is a bit off, so best if others know before they go cutting a driveshaft to find out its not even close.
Click to expand...

Last thing you want to do is invest in a shaft and find the info used was wrong.
 
Rani, why not measure what you have and compare it to what the chart says.

52.70-51.89 = - 0.81"

Average = 52.295" (or a tad over 52 1/4")

You're only talking a little under 1" difference. With the length of engagement of the slip yoke in front, it may be close enough, or take the average of them. See if you have one in that range, then when you put it together see if it fits. If not, then make an "adjustment"...
 
I have one from a 74 dart with 904 and 8 1/4 and it's 45" c-c. Did you look at the driveshaft thread/sticky I set up?
 
My guess is that the difference is in the u-joints (Chrysler used two sizes and there did not seem to really be a pattern as to which you would find based on engine option). Get the car together and measure with the weight of the car on the axle.
 
Jim Lusk said:
My guess is that the difference is in the u-joints (Chrysler used two sizes and there did not seem to really be a pattern as to which you would find based on engine option). Get the car together and measure with the weight of the car on the axle.
Click to expand...

X2 on u joint difference.
Also slip yoke length is different between 904 and 833/727

For a ballpark figure 904/8.25 111" WB 52.75" Always measure at ride after pinion angle is set.
 
I just measured mine 74 SE with a slant/904 and 8 1/4 rear and get 52 3/4 center of the u joints.
looks like this one is it.
3467155 1973-76 3.25 52.70 904/833/230 8-1/4 225 318 340 360 Duster Dart Sport
 
Hmmm. My 1971 Dart has an 8 1/4 (318/904 car). I was lead to believe it was original. Guess I need to research that.
 
Rainy Day Auto said:
well this also begs the question for those with duster/demon/dart sport cars. Which one on the chart is the correct one for these cars?

the two I highlighted in blue are the same application...two different numbers.

And this chart is all over the web .....even on FBBO.
Click to expand...

Rani, don't trust any driveshaft chart, anywhere! Even the factory parts books are incorrect!
I tried at one time to make a 100% accurate chart but was unable to get enough real world data. I am still working on it.
 
69MOPE said:
Please measure your driveshaft and list the measurement for those who need it?
Click to expand...

As best I can tell, mine measures right at 52 3/4. This would be right in line with the 1973-1976 Duster Dart Sport with 904 and 8 1/4 from the above chart.
 
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