Author Topic: subframe mounts and connectors  (Read 316 times)

DarcyL

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subframe mounts and connectors
« on: January 13, 2019, 02:55:04 PM »
Hi there- I know the solid vs. urethane subframe mount thing has been gone over before, but I was wondering if there is an issue with using the solid subframe mounts, without subframe connectors. I know most people say you must use solid mounts when adding connectors, but are they the best option when not running subframe connectors? Or would the urethane ones be better, to allow a bit of cushion still? Thanks for the input-
  Darcy

jonathonar89

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Re: subframe mounts and connectors
« Reply #1 on: January 13, 2019, 04:52:46 PM »
They’re great by themselves.  I actually did solid body mounts and g-braces on my car without frame connectors for a few years. Worked great.

79T/Aman

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Re: subframe mounts and connectors
« Reply #2 on: January 13, 2019, 05:13:05 PM »
there is no negative effect to using solid body mounts by themselves, the less flex you have in the chassis the better, modern cars have the frame welded to the body to make it a unibody.
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DarcyL

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Re: subframe mounts and connectors
« Reply #3 on: January 13, 2019, 06:20:59 PM »
Yup, sounds good- I was just concerned about the solid mounts transferring more stress into the body structure without the subframe connectors- Mostly worried about the leaded seam on the roof opening up/ cracking- Or am I worried about nothing?
  Darcy

79T/Aman

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Re: subframe mounts and connectors
« Reply #4 on: January 14, 2019, 10:02:10 AM »
The frame connectors do nothing more than ad beam strength to a car, they are under tension, most of the stress goes through the body bolts, with frme connectors the next mounting point is 4 " away at the rear.
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Re: subframe mounts and connectors
« Reply #4 on: January 14, 2019, 10:02:10 AM »

Ryoko

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Re: subframe mounts and connectors
« Reply #5 on: January 15, 2019, 09:57:04 AM »
OK, what's better? Solid aluminum or solid urethane? I know the urethane will have a little give compared to the metal spacers. But this might be desirable to take up any slop in sub frame mounting points.

79T/Aman

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Re: subframe mounts and connectors
« Reply #6 on: January 15, 2019, 10:13:29 AM »
the "slop" is taken up by the clearance between the bolt and the ID of the bushing.
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Ryoko

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Re: subframe mounts and connectors
« Reply #7 on: January 15, 2019, 10:17:45 AM »
the "slop" is taken up by the clearance between the bolt and the ID of the bushing.

Actually, I was referring to slop in the distance between the sub frame and the body mounting points. (Gawd, I wish I still had my lathe. These would be so easy to make.)

79T/Aman

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Re: subframe mounts and connectors
« Reply #8 on: January 15, 2019, 05:30:08 PM »
once tightened there is no "slop" or am I missing something...maybe you're over thinking this as well.
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Re: subframe mounts and connectors
« Reply #8 on: January 15, 2019, 05:30:08 PM »
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