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Old 07-30-2003, 03:26 PM
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Changing to 9" ford rearend...

I have a 64 Chevy step-side 1/2 ton truck. I'd like to change the rear end out to a ford 9". I have 2 center sections now, with different gear ratios. My question is this, I plan to run some "fat" tires under the back (hopefully I won't have to tub the bed in the back - but thats another story), IF I have to cut down the axles, where do I send them to have the splines re-cut? Aren't the axles a hardened steel? Anybody done this before? YES ...I know I can have NEW axles made, but I'm trying to keep cost down, so I'd like to just modify the original axles. THX for look'n! ...Mark
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Old 07-30-2003, 03:48 PM
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strange or moser axle will cut your axles i believe
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Old 07-30-2003, 08:55 PM
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I think they basically lop off the end and cut the splines, 28 or 31, on the end with a grinder I suppose.

We have a place here in Los Angeles that will do it. Cooks Machine Shop. Don't know the cost, I think it was 189.00 for both the housing and the axels..so probably cheaper for just axels. I was gonna have a 9" narrowed but then found one stock unit the right width.

Good luck
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Old 07-31-2003, 01:21 AM
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Alot of times you can't cut and respline a 9" axle because they taper down after the splines and are not physically large enough od to spline.
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Old 07-31-2003, 01:39 AM
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If i remember correctly, the 9 inch axles acutally taper and get bigger in OD after the splines.
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Old 07-31-2003, 02:51 PM
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I don't know if it's true with all 9" axels, but mine were just like jux said, too narrow to respine once cut down. I found a set that were out of an 80's Ford Van that were long enough to cut down and respline.
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Old 07-31-2003, 06:09 PM
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hmmm. nm then, i have mosers, so maybe they are different.
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Old 08-01-2003, 01:08 AM
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Yes moser axles are straight and can be resplined at any legnth. To be a little more clear, if you go short enough theaxle does get bigger again and you can respline but if you have to turn it down too much you will go through the hardening and it will be too weak. The stock hardening is pretty thin and crappy.
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Old 08-02-2003, 10:09 AM
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Stock axleshafts are made out of cast iron, you are asking for trouble to respline them. Someone somewhere does it. But they won't last forever. Keep in mind these axleshafts are at least 20 years old already. Metal fatigue has already set in. I think custom length moser axle shafts are about $200 a piece. But they are worth the price. As far as the housing, any hot rod shop should be able to cut it down and find the correct axle shaft length.
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