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John D


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Driveshaft Balance - Care to recommend a shop?
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Charlie Mu.... works at Catco... but he recently changed positions.

I had mind done at the Roseville location when I did the LT-1/4L60 conversion. Don't know how fast they spun it, but an imbalance condition is an imbalance condition - it'll show up regardless of RPM... unless at the higher RPM it's introducing a harmonic that's rattling something else.



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John D. - St. Louis Park, MN.

1965 El Camino - LT-1, 4L60e, 4wh discs, SC&C susp.
2013 F-150 Platinum - Twin Turbo 3.5

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jim larson


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Looking for a couple of recommendations.  I had mine done about 8 yrs ago at CATCO in Rochester, mn.  I think they could spin it only around 3000rpm or less.  Thanks.



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Jim L

Lake City
Chris R


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Are you having issues with vibration at higher RPM? Catco was going to be my recommendation.



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Chris - Ramsey, MN.

Dear Optimist, Pessimist, and Realist.

While you guys were busy arguing about the glass of water. I drank it!

Sincerly,

The opportunist.
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Charlie from our club works at a shop but I haven't heard from him in a couple years.

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Darren - Crystal, MN
1972 4-door Chevelle driver/racer
2003 Silverado 1500HD Crew Cab
dashboard


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Jim, I’ve never seen your car go fast enough for the drive shaft to reach 3000 RPM.

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Kevin

Northwestern Ohio
Chris R


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dashboard wrote:

Jim, I’ve never seen your car go fast enough for the drive shaft to reach 3000 RPM.

 That was my first thought as well.



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Chris - Ramsey, MN.

Dear Optimist, Pessimist, and Realist.

While you guys were busy arguing about the glass of water. I drank it!

Sincerly,

The opportunist.
jim larson


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dashboard wrote:

Jim, I’ve never seen your car go fast enough for the drive shaft to reach 3000 RPM.

 I was at 5000 + when I threw the PS belt in 3rd gear, would guess the driveshaft would be at about 3400.  Remember I don't have a  fancy transmission with the 5th gear, just an old M20.  Jumps up to 5000 pretty quick in 3rd gear.  Hardly ever go over 90mph; but that would give me about 3650.  So on occasion it happens.

Actually the minor vibiration happens at about 65-70mph in 4th.  Most likley the bias tires, rims, or brake drums being a little out of balance.  So If I stay under 60 all is good.



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Jim L

Lake City
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I'd bet bias tires over anything else. We use Proven Force (CLutch & U-Joint) in Maple Grove for work, there's also a driveshaft company somewhere off I-94 and about Riverside, but I forget the name right now.

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Bryan-NW 'burbs
1972 Malibu
Vaguely stock appearing, and the opposite of restored.
1999 std bore 5.7, Vortec heads, Holley Stealth Ram, GM cam
700R4, Viking coilovers, 12 bolt 4.10 posi, and a whole bunch more
seagrams72


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Catco in Burnsville cut welded, and balanced mine. I want to say $50 to balance? Could have been more though.

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Andy

Southern Suburbs
dashboard


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Jim, are you sure you didn’t just doze off and dream this?

I hit 5000 grand in second gear one day and thru the alternator belt, but I had a redhead sitting next to me…….then I woke up.



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Kevin

Northwestern Ohio
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Speaking of things, how'd that rear end noise turn out Kevin?

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Bryan-NW 'burbs
1972 Malibu
Vaguely stock appearing, and the opposite of restored.
1999 std bore 5.7, Vortec heads, Holley Stealth Ram, GM cam
700R4, Viking coilovers, 12 bolt 4.10 posi, and a whole bunch more
jim larson


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dashboard wrote:

Jim, are you sure you didn’t just doze off and dream this?

I hit 5000 grand in second gear one day and thru the alternator belt, but I had a redhead sitting next to me…….then I woke up.

 Nope, it was Rachael and she make me stay under 90mph.



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Jim L

Lake City
dashboard


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Pulled the cover for a visual inspection everything looked good so I add TWO bottles of limited slip additive and two quarts of 80-90w gear lub.  I’ve driven a couple hundred miles made several very tight turns both forward and reverse and even lite the tires up a little to check the posi, its working great.

Once again Bryan thanks to you and others for all your help that evening.

   



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Kevin

Northwestern Ohio
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