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By ejstith - 16 Years Ago
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By any chance would anybody have a "car" Y-block on a stand or on the floor with the "car" (manual transmission) bell housing on it? I need to know the distance from the crank hole (where the pilot bearing goes) to the face of the bell housing (where the transmission bolts up). In other words what is the longest transmission input shaft I can have? Thanks.
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By Oldmics - 16 Years Ago
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6" is the length of the headgear. Measured from the face of the trans to the end of the headgear. Oldmics
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By Hoosier Hurricane - 16 Years Ago
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EJ" From the rear face (toward the trans) of the pilot bushing to the trans mounting face on a passenger bellhousing is 5 1/2", using a steel scale.
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By Oldmics - 16 Years Ago
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Makes compleate sense. 5 1/2 to the bushing with the headgear fitting the last 1/2 inch into the pilot bushing for a total length of 6" for the headgear. If your modding the length of the headgear dont forget to angle cut the very end for a guide into the pilot bushing. I had to do it on my T 10 for a correct fit. Oldmics
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By ejstith - 16 Years Ago
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I am assuming a "headgear" is the same as the input shaft. 6" sounds about right. Mine's 6 1/2 so I'm going to have to do something there, either find another input shaft or cut this one down. Thanks guys ...Gotcha on the bevel at the end.
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By Oldmics - 16 Years Ago
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Lot of guys will just grind or use a cutoff wheel on the headgear (input shaft) I am fortunate enough to have a lathe in my garage and just turned the headgear shaft down to the correct length when I had the trans apart for a rebuild. Oldmics
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By Hoosier Hurricane - 16 Years Ago
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EJ: Along with making the total length 6 1/2, make sure the splines do not hit the pilot bushing. You may have to trim them back a little also. They can't extend more than the 5 1/2, plus a few thou clearance from the front face of the trans.
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By miker - 16 Years Ago
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I had to cut the shaft on a T-5 to use Mummert's adapter on my 'bird. First we fit the tranny to the block/bellhousing without the bushing or clutch, and took a measurement to verify the length. I was really worried about it, but we taped off the shaft, with some clay and plastic wrap to keep debris out of the front bearing. I then turned the tail shaft with the yoke, while a younger, steadier friend ran the cut off wheel on a line scribed on the shaft. When we were done. we put clay in the pilot hole, pulled the tranny down, and measured the clay, like you would for piston to valve clearance. We got it right the first time, and it's been good for several thousand miles. If your using an adapter, and non stock applications, watch the splines. Some adapters don't allow the clutch disc to fully engage the splines (Mummert doesn't sell those, others do). I've also heard of new tranny's not getting enough oil in neutral, and seizing up if you're running high rpm's to break in the cam. Get the wheels off the ground, and let the tranny turn them so the something more than just the front gear (cluster?) turns. It turned out all of this is easier than it sounds, and one less thing you'll have to worry about later.
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By ejstith - 16 Years Ago
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No adapter involved here. I have another shaft that is about 6 1/4 inches. It just may work. I'll check the splines to the transmission for 5 1/2 or so. Thanks y'all ..
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