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Anyone else run poly motor/tranny mounts?

Discussion in 'The Garage' started by 8_YOUR_H2, Mar 2, 2006.

  1. 8_YOUR_H2

    8_YOUR_H2 1/2 ton status

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    Can you feel a lot more engine vibration in the cab than with rubber motor mounts? I used poly motor mounts and trans mounts and got it running for the first time last night. It feels extremely rough in the cab but runs good, all 8 cylinders are firing adn the timing is dead on. This is the only thing I can think of that would make it feel like its running rough.
     
  2. 6.2Blazer

    6.2Blazer 1/2 ton status

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    I have poly engine and trans mounts on my '90 with the 6.2..........I noticed very little difference between the stock rubber and the new poly mounts.
     
  3. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

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    Only slightly, very slightly more vibes with the poly stuff... Hard to notice if you didnt know they were different.

    John
     
  4. rcamacho

    rcamacho 1/2 ton status

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    I run poly engine mount inserts and a stock rubber tansfer case mount. This helps greatly control torque wrap and I have not noticed any vibration increase.
     
  5. camiswelding

    camiswelding 1/2 ton status

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    zero increase on my 89 v3500 bb
     
  6. sweetk30

    sweetk30 professional hooker Premium Member

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    how are your body mounts? it might be hitting the frame in a spot and giving you more vibs. :confused:

    but i have them and love them.
     
  7. 8_YOUR_H2

    8_YOUR_H2 1/2 ton status

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    I think that is the ticket. I do not have the body bolted to the frame and 3" body lift blocks in the front/none in the rear. It looks like the body is resting on the frame in the rear. PLUS it looks like the rear of the tcase is touching the top of the tub too.

    Before you think WTF is this toolbag doing with half of a body lift installed I will explain....I had to put the front portion of the lift in to clear the doubler. I have not cut out the trans tunnel yet...That will be this week.

    Damn gremlins....
     
  8. sweetk30

    sweetk30 professional hooker Premium Member

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    wow i got it correct out of the blue .:wink1:
     

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