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Post by jayjay1985 on Nov 2, 2015 13:22:24 GMT -5
Having an issue with drive shaft yoke fit up. I have an 84 318/904 that I just dropped in a car I got as a roller. The car is an 89 grand furry and came with the drive shaft. The problem is the id of the yoke is about 1/4" larger than the output shaft of the trans. The spline count is the same on both 26 spline which leads me to believe it's not a yoke from a 727. I'm not a mopar guy so any help would be appreciated
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Post by seventyonehemicuda on Nov 3, 2015 20:21:31 GMT -5
Having an issue with drive shaft yoke fit up. I have an 84 318/904 that I just dropped in a car I got as a roller. The car is an 89 grand furry and came with the drive shaft. The problem is the id of the yoke is about 1/4" larger than the output shaft of the trans. The spline count is the same on both 26 spline which leads me to believe it's not a yoke from a 727. I'm not a mopar guy so any help would be appreciated I would do a recount ont the splines. there are 2 basic options for dodge slip yokes 7260 series -29/30 spline (larger) 7290 series - 25/26 spline (smaller) these vary in diameter by "about" a quarter inch. 904s take a 26 spline yoke 727's take a 30 spline yoke early a833 4 spd standard transmissions had 30 spline yokes, later models had 26 spline yokes. or something like that.
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Post by jayjay1985 on Nov 4, 2015 1:10:50 GMT -5
Having an issue with drive shaft yoke fit up. I have an 84 318/904 that I just dropped in a car I got as a roller. The car is an 89 grand furry and came with the drive shaft. The problem is the id of the yoke is about 1/4" larger than the output shaft of the trans. The spline count is the same on both 26 spline which leads me to believe it's not a yoke from a 727. I'm not a mopar guy so any help would be appreciated I would do a recount ont the splines. there are 2 basic options for dodge slip yokes 7260 series -29/30 spline (larger) 7290 series - 25/26 spline (smaller) these vary in diameter by "about" a quarter inch. 904s take a 26 spline yoke 727's take a 30 spline yoke early a833 4 spd standard transmissions had 30 spline yokes, later models had 26 spline yokes. or something like that. The spline count is correct and like you said I can't find anything online that there was any other slip yoke for a 904 so I'm thinking maybe the guy gave me a drive shaft from something else with the car. Guess I'll go to the junk yard and see what I can find
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Post by jayjay1985 on Nov 4, 2015 15:05:32 GMT -5
The guy said he probably Gave me the wrong shaft. So that solves that lol
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Post by chevykillerx13 on Nov 10, 2015 22:50:55 GMT -5
Have yet to Id a 3 speed I picked up, but, Saturday, I'm getting a 318 with a NP435 2wd trans. Looks like it has a bolt in yoke from the picture. Worth running over a 904? Or shlep it off to a truck guy?
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Post by Regulator15 on Jan 28, 2016 12:02:50 GMT -5
I have a 727 that was rebuilt and has about 15 mins total run time on it and now lost all gears again. The fluid is clean and no metal in the pan. After the first rebuild i had issues with a spring loaded plunger that created vacuum I believe. Atleast that's what's the guy who did the work told me as he cleaned it out in front of me and it worked for a while. Anyone know if there is a way to test this to see if it happened again without pulling the tranny? Or any other possibly solutions?
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Post by cowdoc on Jan 29, 2016 22:28:17 GMT -5
I have a 727 that was rebuilt and has about 15 mins total run time on it and now lost all gears again. The fluid is clean and no metal in the pan. After the first rebuild i had issues with a spring loaded plunger that created vacuum I believe. Atleast that's what's the guy who did the work told me as he cleaned it out in front of me and it worked for a while. Anyone know if there is a way to test this to see if it happened again without pulling the tranny? Or any other possibly solutions? Did you Check the line pressure with a pressure meter-no pressure could be the pump or valve body. check the 1/R band and the band strut. If you have brass in the pan the torque converter died. drop the valve body and go through it. Otherwise you will need to pull the tranny and go through it. Do port tests with air to help find a bad seal etc.
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dm440c
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Post by dm440c on Feb 7, 2016 9:43:28 GMT -5
there are no vacuum functions in a Chrysler transmission, if the guy rebuilding it told me that it would be the last business I gave him.
He was probably talking about one of the servo pistons that work the bands. These are activated by fluid pressure only. There are service ports for these (and other functions) where a competent technician can take some pressure taps and help with the diagnosis.
If you lose just forward or reverse gear it could be an actuator failure but "lost all gears" is usually a fluid flow issue, especially if you have clean red fluid on the stick. Debris blocking ports, pump issue, torque converter issue, valve body issue would be the most likely culprits. Again, a knowledgeable tech can sample the pressure from a few of the ports and drive towards a realistic diagnosis. I'd be suspicious of the rebuild based on the vacuum comment, tells me the guy may not have assembled things correctly and while it doesn't match the symptoms I would also be suspicious of how he set up the bands or the line pressure.
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Post by chevykillerx13 on May 8, 2016 12:12:47 GMT -5
Anyone have experience with an NP435?
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Post by martin113 on May 19, 2016 0:11:07 GMT -5
I'm building a 5.9 magnum have heard the balancing is different. So what will I need to use a 727 with it?
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noser23x
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Post by noser23x on May 19, 2016 2:28:13 GMT -5
I'm building a 5.9 magnum have heard the balancing is different. So what will I need to use a 727 with it? Yes balancing is different. 5.9 use a weighted flex plate and a neutral balanced converter. If you have the flex plate that came with the motor use that and a neutral balanced converter. Easiest way to go about it. Other option is a neutral flex plate and a weighted converter, that will cost more money. *Probably clarify, magnum 5.9 balancing is different then any other.
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Punisher 66J
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Post by Punisher 66J on May 19, 2016 16:18:05 GMT -5
Definately need to get the flex plate when you get your magnum. I am putting one in my 74 dart swinger and going throught this at this very moment. Neutral converter and the magnum flexplate is easiest. You also will need to make one torque converter hole bigger once fitted. For some reason it is just a little off.
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Post by buckoff on Jun 3, 2016 10:08:54 GMT -5
My 72 newport with BB 400 and 727 only has 1st and reverse. A month ago 1,2,D,and R all worked. Now 1 and R work perfect, but when in 2 and D, the car will barely move. I changed fluid and filter, hoping it was just low, with no luck. Would anyone run figure 8 with only 1st and Reverse?
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noser23x
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Post by noser23x on Jun 4, 2016 2:06:46 GMT -5
My 72 newport with BB 400 and 727 only has 1st and reverse. A month ago 1,2,D,and R all worked. Now 1 and R work perfect, but when in 2 and D, the car will barely move. I changed fluid and filter, hoping it was just low, with no luck. Would anyone run figure 8 with only 1st and Reverse? Sounds like a band issue, 1st and reverse are on the same band, that band is good. Figure 8 I wouldn't, having atleast second would be beneficial.
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Post by buckoff on Jun 4, 2016 14:21:01 GMT -5
Guess I'll get the book out and see what I can figure out with band. Thanks, appreciate it
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