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1986 K5 Blazer 4x4 Info

Old 07-22-2009, 02:18 AM
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Default 1986 K5 Blazer 4x4 Info

I am looking at buying a 1986 K5 4x4 Blazer and was wanting to get some info and opinions on it. Right now all I really know about it is that it's got a 305 in it which I do not care for too much but a 350 crate motor isn't hard to add later down the road. As far as transmission, gear ratio and such goes, I am hoping to find this info out tomorrow. But, what I am wanting to know is what were the different tranny and gear options for this make and year? I know some had a TH350 and 700-R4 but not sure if they came with anything else?
Also what kind of fuel milage should I be expecting with 32's and each tranny combo that it may possibly be? What are the common problems with these K5's that I should look out for as well?
Thanks for ANY information and suggestions!
Old 07-22-2009, 08:35 PM
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Well, definitely check closely for rust and bondo masking.
My 305, gets me about 18 mpg hwy. Haven't used it as a daily driver yet as I'm having an oil consumption issue that I have yet to pinpoint. Mine has the 700R4 auto, not sure about the diffs though.
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