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UMI Weight Jacks and Moser 12-Bolt Questions

Old 11-29-2018, 06:52 PM
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UMI Weight Jacks and Moser 12-Bolt Questions

Am currently going to install a Moser 12-bolt in my 85 third gen. Am also going to use UMI weight jackets in front and rear. Has anyone done this? I need to know how tall the Moser installed center tube piece on the spring perches needs to be.
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Old 11-29-2018, 07:02 PM
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Re: UMI Weight Jacks and Moser 12-Bolt Questions

Is the Moser not built yet? Would you not just set it up like a stock Thirdgen rear?
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Old 11-29-2018, 07:08 PM
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Re: UMI Weight Jacks and Moser 12-Bolt Questions

Housing is being built. Moser wants to know what height to make center rear spring tube because weight Jack fits inside. See pic:

Last edited by BADMAN; 11-29-2018 at 07:16 PM.
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Old 11-29-2018, 07:17 PM
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Re: UMI Weight Jacks and Moser 12-Bolt Questions

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Old 11-29-2018, 07:42 PM
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Re: UMI Weight Jacks and Moser 12-Bolt Questions

Yep, I'm following....UMI's look pretty similar to my Ground Control jacks. .....this rear I've been getting ready to install is 5/8" off the base. Assuming everything else is to thirdgen specs, that should work. MY jacks portrude down BELOW 0" deck, for lack of a better term, by about an inch. If Moser cuts that tube down to 5/8", is it hollow in there???
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Old 11-29-2018, 07:47 PM
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Re: UMI Weight Jacks and Moser 12-Bolt Questions

Yes it is hollow. I will have to drill hole for height adjustment.
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Old 11-29-2018, 07:58 PM
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Re: UMI Weight Jacks and Moser 12-Bolt Questions

Just to make sure but you do know that umi says the rear kit only works with factory and strange rears right?
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Old 11-29-2018, 08:15 PM
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Re: UMI Weight Jacks and Moser 12-Bolt Questions

Inside diameter of cup will work. UMI verifies that. Height was the issue. Thanks for the heads up. Will call Moser tomorrow and give them the needed height measurement.
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Old 11-29-2018, 10:29 PM
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Re: UMI Weight Jacks and Moser 12-Bolt Questions

My Strange unit is roughly 1.5 times coil wire diameter.
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Old 11-30-2018, 01:46 PM
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Re: UMI Weight Jacks and Moser 12-Bolt Questions

Give me a call at 814-376-6000 and we can discuss.

There has to be a clear hole down through for the jack bolt. Also, I can look on the drawing and check diameters. Our goal is to try it on our in-house Moser but we haven't done so yet.

thx

ramey
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