Just bought a 9" and have some questions.
12-16-2009, 07:47 AM
#1
Just bought a 9" and have some questions. I just bought a Mosier 9" because I was tired of breaking 10 bolts. I have stock suspension and I'm stock ride height.
1) The 9" is set up for 1350 U joints. Is there any way to use my stock drive shaft?
2) The 9" has LCA relocation brackets. Can I use my stock LCA's?
3) Can I use my stock torque arm?
I tried to search for these answers but it wont let me go back past page 3. Sorry. Thanks for your answers though! Trey
1) The 9" is set up for 1350 U joints. Is there any way to use my stock drive shaft?
2) The 9" has LCA relocation brackets. Can I use my stock LCA's?
3) Can I use my stock torque arm?
I tried to search for these answers but it wont let me go back past page 3. Sorry. Thanks for your answers though! Trey
12-16-2009, 10:02 AM
#2
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1) your going to need a new driveshaft. stock is 41" and your going to need a 42" one. stock will work but it's going to be an inch short and prone to breaking more ****.
2) I believe you can use factory relo brackets but they'll be too short for for the lowest hole
3)i don't see why the factory t/a wouldn't work for you
I just went threw everything your going threw. have fun man. do a lot of searching
2) I believe you can use factory relo brackets but they'll be too short for for the lowest hole
3)i don't see why the factory t/a wouldn't work for you
I just went threw everything your going threw. have fun man. do a lot of searching
12-16-2009, 11:01 AM
#3
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you may get by with stock ds:, you will need a conversion ujoint( orilley-auto parts house), will help you to adjust the rear with adjustable LCA, or you may buy 1" longer 1350 rear yoke (e bay),yes you may use the oe lca.the TA will work may be weak ( bend under a hard lounch )
my$0.02, Johnny
my$0.02, Johnny
12-16-2009, 04:15 PM
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following is info some mike looked up, I will only pass it on
read many times that all you need is a conversion u-joint to use a 9" with the stock driveshaft. I've been looking for this mythical "conversion u-joint" for a few days now and discovered the following:
- There were at least 2 different u-joints installed in f-bodies. However, I'm not sure if there was an LS1/LT1 difference, or an 6-speed/Auto difference.
- There were at least 8 different yokes, accepting at least 4 different u-joints, installed in stock Ford 9" rear ends.
- The Spicer 1350 was never offered from Ford on a 9".
- Ford offered a "long" and a "short" yoke. The long one is 5" overall length and the short is 4" overall. The "long" yoke is the correct one and it puts the u-joint about 1/4" further from the transmission versus the stock 10 bolt.
-rockforddriveline.com is a great resource for u-joint dimensions and the prices are decent too.
- A u-joint measuring 3.218" outside/outside with 1.125" bearings is a "Ford Special" series. These were installed stock on some Ford 9" rear's.
- A K1201 u-joint adapts a Spicer 1310 to a "Ford Special" yoke and only costs about $15.
- A u-joint measuring 3.218" outside/outside with 1.063" bearings is a Spicer 1310. These were installed stock on some Ford 9" rear's.
- A u-joint measuring 3.622" outside/outside with 1.063" bearings is a Spicer 1330. These were installed stock on some Ford 9" rear's.
- A u-joint measuring 3.622" outside/outside with 1.188 bearings is a Spicer 1350.
Hope this saves somebody the PITA that I just went through. . .
Mike
" a 1350 from napa part number #240- 0447
Yeah, that all you need to know to get a stock driveshaft to work with a 1350 yolk."
"or go to the rockforddriveline website."
http://webpages.charter.net/pjunion/...ed-9901155.pdf
UJOINTS INFO SIZE
http://www.neapco.com/pdf/Performanc...ed-9901155.pdf
hope some of this helps
Johnny
read many times that all you need is a conversion u-joint to use a 9" with the stock driveshaft. I've been looking for this mythical "conversion u-joint" for a few days now and discovered the following:
- There were at least 2 different u-joints installed in f-bodies. However, I'm not sure if there was an LS1/LT1 difference, or an 6-speed/Auto difference.
- There were at least 8 different yokes, accepting at least 4 different u-joints, installed in stock Ford 9" rear ends.
- The Spicer 1350 was never offered from Ford on a 9".
- Ford offered a "long" and a "short" yoke. The long one is 5" overall length and the short is 4" overall. The "long" yoke is the correct one and it puts the u-joint about 1/4" further from the transmission versus the stock 10 bolt.
-rockforddriveline.com is a great resource for u-joint dimensions and the prices are decent too.
- A u-joint measuring 3.218" outside/outside with 1.125" bearings is a "Ford Special" series. These were installed stock on some Ford 9" rear's.
- A K1201 u-joint adapts a Spicer 1310 to a "Ford Special" yoke and only costs about $15.
- A u-joint measuring 3.218" outside/outside with 1.063" bearings is a Spicer 1310. These were installed stock on some Ford 9" rear's.
- A u-joint measuring 3.622" outside/outside with 1.063" bearings is a Spicer 1330. These were installed stock on some Ford 9" rear's.
- A u-joint measuring 3.622" outside/outside with 1.188 bearings is a Spicer 1350.
Hope this saves somebody the PITA that I just went through. . .
Mike
" a 1350 from napa part number #240- 0447
Yeah, that all you need to know to get a stock driveshaft to work with a 1350 yolk."
"or go to the rockforddriveline website."
http://webpages.charter.net/pjunion/...ed-9901155.pdf
UJOINTS INFO SIZE
http://www.neapco.com/pdf/Performanc...ed-9901155.pdf
hope some of this helps
Johnny
12-16-2009, 08:27 PM
#6
Typically, a Napa 447 conversion u joint is what is needed to use with the factory driveshaft, to match it up with a 1350 yoke. With the Moser 9 inch, the driveshaft will be one inch too short. Many people never have a problem, but several people picked up a vibration due to the driveshaft being too short. The longer yoke that has been posted above will take care of the problem, although the factory aluminum and steel driveshafts are prone to breakage. I've seen them turn into a pretzel on the starting line, and they normally take out the exhaust and put holes in the floor before they quit spinning. This happened to my car with an aftermarket driveshaft, I then went to a PST 3.5 inch aluminum driveshaft that uses a 1350/1350 u joint, and I have never had to worry about the driveshaft since then. Here is a link to the PST driveshaft. http://www.exoticperformanceplus.com....html?item=541
As far as the factory torque arm goes, I've seen then bend approx six inches ahead of the rear. Check this link out. http://www.exoticperformanceplus.com...php?service=58 Bob
As far as the factory torque arm goes, I've seen then bend approx six inches ahead of the rear. Check this link out. http://www.exoticperformanceplus.com...php?service=58 Bob
