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GMT900 Front Coilover Question

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Old 04-23-2013, 07:17 PM
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Thats awesome. Next set may just be QA1s.
Old 04-23-2013, 10:09 PM
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The pro comp part numbers are 90-3712 for the upper mount (need quantity 2) and the hardware pack is 90-6317. I can check individual pricing tomorrow.
Old 04-24-2013, 12:15 AM
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Thats pretty sweet....out of curiosity, what type of lower shock mounts do the 4wds use?
Old 04-24-2013, 01:39 AM
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Originally Posted by SLCviaAK
The pro comp part numbers are 90-3712 for the upper mount (need quantity 2) and the hardware pack is 90-6317. I can check individual pricing tomorrow.
Please do!! I searched the mount part number on google and it came up on pro comps list of parts for the lift kit, but I haven't been able to source it individually yet.

Last edited by tiffo60; 04-24-2013 at 01:55 AM.
Old 04-24-2013, 12:10 PM
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The adapter mounts are a little over $50 each. So $100+ bucks plus $10 for the hardware bag. I understand that is a chunk of change for two adapters, but the suspension manufacturers do not like selling parts piecemeal. If any one is still interested, PM me and I will let you know how to get them. If the mods allow, I'll post the contact information openly, but my employer is not a site sponsor.
Old 04-28-2013, 03:39 PM
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How about talking spring rates? I've been searching for the factory spring rates but I haven't had any luck yet. Any benefit going with a qa1 variable rate spring? Still trying to figure how the qa1 spring rate charts compute. Seems like a 10in spring that starts off at say 300lbs, increases 300lbs per every additional inch of compression?

Last edited by tiffo60; 04-28-2013 at 08:39 PM.
Old 04-28-2013, 08:49 PM
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From the mass amount of reading I have done I'm leaning towards a 2.5dia x 12" spring either 500lb or 550lb. 500lb may be a little more comfortable ride quality while the 550lb would be more sporty ride quality. Or a 2.5"dia x 14" 350lb Any thoughts before I jump off this bridge?

Just for reference here's how I came to this

Spring weight is 1450+\- on front corner.
Stock spring measures a tad under 10inch at ride hieght.
A qa1 550lb 12" spring will compress about 2.62in which is pretty close to maintaining my current ride height.

Or maybe a 14" x 350lb spring which gives me a tad over 4" of compression? (14" spring is recommended for the DS701)

This is all just a guess based in my previous reading. Any input is welcomed.

Last edited by tiffo60; 04-28-2013 at 09:07 PM.
Old 04-28-2013, 09:20 PM
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Might want to measure where the coil will actually fit...on mine, granted its a gmt800 4wd, I am using a ds301 with a 6" spring. A 7" is recommended but that would make mine too tall. I am also using a 1000lb spring, it is very stiff, but I also dont have much travel to work with, so it needs to be.
Old 05-27-2013, 04:15 PM
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Any updates on this?
Old 05-27-2013, 04:17 PM
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Originally Posted by RS/SS 4.8
Any updates on this?
I haven't had time to do it yet, I have been working out of town pretty solid over the last month and a half or so, I'm hoping to get a break pretty soon to make this happen


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