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Pulsing through steering wheel, pulling away/reversing

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Old Aug 10, 2018 | 06:21 PM
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Default Pulsing through steering wheel, pulling away/reversing

Hi, I have a 74 with th400, and when reversing out of the garage, or very slow manoeuvres, putting the car in or out of the garage, often with foot riding the brake, I get a pulsing through the steering wheel, that can be felt on the brake pedal also.
I’ve just installed a new Borgeson steering box, and it did it before this, and after.
The pulsing is faster than the rotation speed of the driveshaft or half shafts, and I don’t notice it when driving normally, under braking etc.
I’m wandering if the trans is at fault, torque converter or something?

Any ideas as to what it could be?

Thanks, Tim.
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Old Aug 10, 2018 | 06:58 PM
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From: Bridgewater nj
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That’s a strange set of symptoms. It could be the trans mount is starting to rip. Try giving it a little gas while in reverse. If it gets worse, check the mount. Other than that I would check the brakes. A dragging caliper can make the steering pull.
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Old Aug 10, 2018 | 07:15 PM
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Hi, yes it is strange. It’s not a brake rotor as they’re not spinning as such, as th cars only very slowly moving, but the pulsing is I’d say 120bpm.
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Old Aug 11, 2018 | 06:26 PM
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Check for a loose power steering belt....
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Old Aug 11, 2018 | 06:38 PM
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Originally Posted by sstocker31
Check for a loose power steering belt....
Ah, so it might be slipping at when under heavy load causing the pulsing, I’ll have a look at that!
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