Re: ceramic bearings
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The internet is full of experts. By the way, did you read what I posted about the little road racer decreasing his lap times by EIGHT seconds with only a full treatment of a ceramic COATING on wheel bearings, transmission components and rear end components? Do you realize how much money it would cost in engine R&D to reduce lap times by 8 second on a road course? That's probably like you gaining a half-second in your drag car. Have you gone to the Performance Bearing website? You'll find there are many grades of ceramic bearings. When a guy tells me he spent $20K on bearings, it doesn't always mean he spent the money on the best parts. Maybe he did though, I don't know. But I know this for a fact. I've seen guys spend boo-koo bucks on trick parts and still it takes three or four guys to push the car in the staging lanes. All the trick parts in the world won't fix that problem. The real problem must be addressed before looking at any "trick" parts. Personally, I could care less what John Force or Warren Johnson has to say about a parts merits. I do my own thinking and roll my own dice. |
Re: ceramic bearings
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I looked at PerformanceBearing.com and he has 9" bearings listed but not Dana bearings. They will make any bearing you want if not listed. The 40 spline MW axle bearings are $210 a pair and that would be true if a 9" or Dana. Door car front wheel bearings are shown as $550 approximate (I think it was $542); that's per pair. Pricing is based on application. My AMX spindle bearings cross reference to '67 (and other year) Mustang bearings. So I'm assuming a pair of wheel bearings will be in that price range for my AMX. I haven't called yet. Lamb spindle kits were around $650. Finally, I did some research on the net. As I said, I don't follow every theory "just because so and so said so" but here's what Evan Smith apparently found: Numbers published by Evan Smith in National Dragster show that because of the reduced offset between the pinion shaft axis and the axle centerline, the Dana 60 has LOWER drivetrain losses than either the 12-bolt or the 9-inch: Dana 60: 5% GM 12-Bolt: 7% Ford 9-inch: 10% And yes, there is as much contradictory evidence as supporting evidence on the web regarding frictional losses. |
Re: ceramic bearings
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I've used Torco rear lube in my Dana and as I've said, it always looks new. I've also used Lubrication Engineering (?) sold by Lamb. It's good, it's very expensive and I saw a MPH increase. Not much but is was definitely there. I did go as high as 126 in D/S. Something worked! |
Re: ceramic bearings
This load vs losses has alot of holes it really depends on how input load you are using (no load vs 500 lb-ft) at no load a 9 inch would show more lose than say 500 lb-ft the 9" has less then as the whole gear Assm is locked down pinion has god front carrier bearings bad a pinion tail support the spool has the billet caps and the solid spanners. If I were building a new 9" center today I would use the High strengh steel case that Strange has and Ford the NASCAR teams are using these cases about 2 to 3 lbs lighter than the Nodular but a little maybee 8 heavier than alum. But everything will stay in place and not move!
QUOTE=Jeff Lee;288933]I should never say never! Yes, I have seen Dana 60's spit out gears over the years. Nothing is infallible. Of course there's always "the rest of the story" and we'll never know if the parts had a million runs on them, were not set up correctly or the clutch was better suited for a dump truck than a race car. But I'll stick to saying I've seen more broken 9" rears than Dana's. I looked at PerformanceBearing.com and he has 9" bearings listed but not Dana bearings. They will make any bearing you want if not listed. The 40 spline MW axle bearings are $210 a pair and that would be true if a 9" or Dana. Door car front wheel bearings are shown as $550 approximate (I think it was $542); that's per pair. Pricing is based on application. My AMX spindle bearings cross reference to '67 (and other year) Mustang bearings. So I'm assuming a pair of wheel bearings will be in that price range for my AMX. I haven't called yet. Lamb spindle kits were around $650. Finally, I did some research on the net. As I said, I don't follow every theory "just because so and so said so" but here's what Evan Smith apparently found: Numbers published by Evan Smith in National Dragster show that because of the reduced offset between the pinion shaft axis and the axle centerline, the Dana 60 has LOWER drivetrain losses than either the 12-bolt or the 9-inch: Dana 60: 5% GM 12-Bolt: 7% Ford 9-inch: 10% And yes, there is as much contradictory evidence as supporting evidence on the web regarding frictional losses.[/QUOTE] |
Re: ceramic bearings
I knew I wanted a 12 bolt over a 9", but am surprised at the Dana 60. Still a lot of un-sprung wt.
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Re: ceramic bearings
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Can you run an aftermarket Nodular case in Stock? I just got off skype from talking to my dad about putting together a new third member so I'm just wondering? |
Re: ceramic bearings
Yes.
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Re: ceramic bearings
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Re: ceramic bearings
At one time I ran 4.88's in my AMX. I bought the R&P used from John Dourlet who had literally hundreds of runs on them behind his A/S '64 Savoy Max Wedge car. The looked perfect when I got them and when I changed to steeper gears in my X, they still looked perfect.
I do have CM axle tubes, MW caps, and back-cut ring gear along, MW lite-weight steel spool with and a T/A cover. I remember when Don Little changed out the 8 3/4 in his 'Cuda to a Dana 60 when he put the Hemi in it, he only picked up about a dozen pounds. |
Re: ceramic bearings
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