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#1 |
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Most all of the companies that sell rear ends use the KTRE housing for their heavy duty 12 bolt stuff. The KTRE housing is great, because it is thick, and stiff, and you can get it with a 3.250 carrier bearing bore, so you can use an aluminum spool and 35 spline axles.
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Alan Roehrich 212A G/S |
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#2 |
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If you are going to get a Moser rear check prices then call Lynn McCarty at 317-839-8378 and he will beat any price. The rear will ship from Moser direct to you. Any other questions call me 903-277-9947.
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#3 |
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I think you will find that most of the replacement 12 bolts have the upper trailing arm mounts already raised up, which is another good reason to go with the new unit.
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#4 | |
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The companies I looked at are Mark Williams, Moser, and Strange. MW says they use DTS Express/KTRE cast ductile iron center sections with cast caps, available with stock 3.062" carrier bores or larger 3.250" carrier bores for people who want to run 35 spline axles. Strange claims they use a "Strange designed 12-bolt case with torque arm provision." It's nodular iron, and the caps are chrome-moly. They make no mention of carrier bore diameter, but they don't offer 35-spline axles in any of their crate rearend packages. Moser uses nodular centers with high nodular content cast iron caps held in with 1/2" bolts. They don't mention carrier bores, and they don't package 35 spline axles with these rearends. Based solely on that information, I think I would go with the MW/DTS/KTRE unit with the larger 3.250" carrier bore so I could use 35 spline axles. I also think it's cool that MW makes FED chassis kits and parts for '57-64 Olds/Pontiac rearends.
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#5 |
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I use the DTS 3.25 12 bolt with strange 40 spline gun drilled axles and chrome moly tubes in my firebird...luke
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#6 |
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Mike Pustelney from MPR set me up with the Mark Williams stuff, which the housing is made by DTS, with the 35 spline axles. Great guy to deal with and great prices. Call him at 810-798-8998.
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Joe Martens AA/Stock 3969 |
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#7 | |
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#8 |
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#9 |
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Seeing as how one of the services I provide at the shop is rear ends, I looked at the prices for building them, and I also looked around to see how hard it is to find cores. Considering that around here a USED, 35-40 year old 12 bolt housing, with no guarantee that it is suitable to build a good rearend from, is about $400 to $600, and you'll spend another $500 or so
prepping the housing with caps, studs, and other parts/labor, at a minimum, the aftermarket unit is cheaper.
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Alan Roehrich 212A G/S |
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#10 |
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Alan - I agree with you 100%. If you are wanting to build a top quality rear end, and I think it is a good investment, the aftermarket pieces are definitely the way to go. Looking at the stocker population, the majority of the cars are serviced by aftermarket housings - 12 bolt GM, 9" Ford, Chrysler 8 3/4 & Dana 60. Maybe there should be an accepted "definition" that says any GM product can use a 12-bolt, any Ford product can use a 9" and any Chrysler (and I guess AMC) can use an 8 3/4 or Dana 60. It's almost like that now; in fact, most would argue that it is. It would just simplify matters to make it a ruling and put it in writing.
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