Thread: 87 GMC issues
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Old 11-27-2017, 01:54 PM   #14
Ski-me
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Join Date: May 2012
Location: Colo Springs, CO
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Re: 87 GMC issues

There is a "TV Cable" adjustment for your transmission. If it's not adjusted correctly, it can create some transmission shifting problems. It's up by the TBI unit in the engine bay. I'm assuming the 400 Turbo has one like my 700r4.



Although I found an OEM dash, I did look at and compared a "dashesdirect.com" dashboard. IT was very similar to the OEM one I purchased. Still need to paint it with vinyl paint though.
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89' K5 Blazer, 2.5" lift, 35" tires
04' GMC Yukon XL, 3/4 ton, 8.1L
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