1988 K5 blazer any "weak points" - Hot Rod Forum : Hotrodders Bulletin Board
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Old 05-19-2010, 09:57 PM
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1988 K5 blazer any "weak points"

I may be trading my much beloved 1996 Jeep Cherokee (I like to say it's the last of the AMC Jeeps as Chrysler didn't do much to the Cherokee until 1997. Ditto with the wrangler.) for a 1988 K5.

It's a 350 backed by a 700r4. Stock axles (10-bolt I think).

Any weak spots in these vehicles? Any way to improve induction? Everything I've read the stock 2-bbl TBI isn't much of a performer.

What's the biggest tires that can go on these without lifting or cutting?

Any misc info that might help me out would be really great!

Thanks
Matt

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Old 05-20-2010, 09:48 AM
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nobody knows?
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Old 05-20-2010, 03:25 PM
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Built on the same basic architecture as the 73-87 Chevy trucks.
They are built like tanks,but check the frame at the rear bumper mounts and around the front rear spring hangers.
Axles will be 8.5 10 bolt,The 700r4 will probabaly give you trouble.
I have TBI on my 93 K1500,and dont mind it.
You should be able to clear 33x12.50 15s unless you wheel it hard.
If you decide to go with a late model nv3500 when the 700r4 dies,and do not want to lift it go with the internal slave cylinder version,external slave cylinder needs a lift for drive shaft clearance,I know from first hand experience. Input shaft spline count on the transfer cases is different automatic to manual.

Shane
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Old 05-20-2010, 03:49 PM
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If you're going wheeling, you should reinforce the frame around the steering box...the frame tends to crack in that area. You probably have a NP208 transfer case which is "bleh" to say the least...but if it works, stick with it. If the 700r4 is what the truck came with originally, you probably have 3.08 gearing. You'll probably have a "governor" type posi out back, but none in front.

This is the last year of the "square" body. All the newer trucks look roundish...like a ball of snot. If your Blazer is rust free and has the original paint in good condition, keep it forever and take care of it. Too many people mod their 4-wheelers and there's not too many nice older stock ones out there.
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Old 05-21-2010, 03:34 AM
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Link to pics of the K5 and info



The more I think about it the more I'm split. The TBI trucks have about the worst cylinder heads ever for performance, swapping heads+induction gets pricey, unless I can find a good vortec 350 to do a direct swap. (then I lose the benefits of a 30k engine with mild cam)

My Jeep 4.0L/242ci has about the best engine parts (it's a H.O. some AMC guys swap these heads on the old 258s, and us Jeep guys use 258 cranks during rebuilds) and I did a lot of work on it, mostly building up factory shortcomings (weak dana 35 rear axle swapped out) and a small lift. Just rust... dang rust. Needs rocker and floor work, and some work on a front fender.

Last edited by ChevelleSS_LS6; 05-21-2010 at 01:24 PM.
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Old 05-21-2010, 03:51 AM
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Now that I re-read your initial post...you haven't bought/traded yet?
I guess if there's sentimental value in your Cherokee, maybe you should reconsider. That Blazer is a good starting point for keeping-stock, or modding. But your last post sounds like you're leaning towards the Cherokee.

Follow your heart. I wish I did over the past 20 years. I'd still have my muscle cars.
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Old 05-21-2010, 06:00 AM
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The great thing about a blazer is it is easy to find parts to upgrade.The 700r4 is a good tranny if you get somebody that knows how to upgrade them.
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Old 05-22-2010, 08:30 PM
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Thats a nice Blazer.....but I'm partial to square bodys,so my opinion is biased.
Shane
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Old 05-23-2010, 02:14 AM
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Decided to keep the XJ. Post from seller says he sold it. Hopefully its to a good home. Like said before, not a lot of good clean stockers left.
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Old 05-23-2010, 11:07 AM
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from the description of that truck on the other forum, all rebuilt motor, trans, front end, lack of rust... I would have jumped on it. You're not going to find another one like that in Michigan!

K
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Old 05-23-2010, 08:39 PM
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that is a real nice truck, ive owned about 6 of them from a 73 to the 94 i have now if you take care of it the truck will last a long time the only thing that is odd is that the truck in the picture has an 89-91 nose on it. the 88 was the last year of the 2 big square headlights. unless it was some kind of half year thing.im sure you will enjoy it if you take it.
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Old 05-24-2010, 01:24 AM
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Part of why I didn't trade it is the fiancee said that its stupid for me to fix my Jeep up (I put a lot of money in it last year swapping in a heavier rear axle, lift, getting driveline vibes and steering sorted out, and wheels/tires) just to trade it off.

New floors and it's mostly done. Mostly.

Regardless, before I could get back to the guy about the fiancee's opinion (we're getting married in a month so I don't need her mad at me, otherwise I wouldn't care) he traded it to a guy for a newer Cherokee with an even larger lift than mine (this one is a 6.5 inch. Yikes!).

EDIT: nice to see you guys around RAZR and KF. I'm not here as much as I used to... but regardless keep on rockin!
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Old 05-26-2010, 11:05 AM
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the 700r4 is the only real thing to worry about other than rusted fuel tank

nothing else really...... unless its been beat and run through salt winters all its life, then run away fast in that case.....

the trans cas is a 208 in these but still are pretyt tough takes a ton of mileage before you starrt having nay issue with the chain or anything and they are dirt cheap anyways,

the original auto locking hubs were problematic

but someones already replaced them with part timers/manuals by now im sure

my stepdad wont get rid of his on his 82 k10 hes a wuss and doesnt want to get his poor footsies muddy......yet he will work in his shop every day and get covered head to toe in grease literally...

odd.... maybe hes getting senile or something hm.....

he listens to country music crap so its no wonder ahahahaha.


these trucks are solid otherwise! everyone wants one especially the 88-91 ones now the front end looks nicer on these years! i want a bigass 4x4 burby one so bad.,,,,, but id take a 67/68 or 71/72 first!
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Old 05-26-2010, 11:54 AM
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Quote:
Originally Posted by ChevelleSS_LS6
...
we're getting married in a month so I don't need her mad at me
...
Yup. "Happy Wife = Happy Life" LOL
Their brains may be wired a bit different than ours ... and like it or not, that can be a good thing sometimes.

Me: "I want it"
Her: "Yes, I understand that ... but do you NEED it?"
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Old 05-27-2010, 11:30 PM
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[QUOTE=fast68]
my stepdad wont get rid of his on his 82 k10

post pics. I wouldn't use a clean K5 for mud runs, save those for the crazy lifted, tractor tired trucks. Some (K5-friendly) trails and sand, no problem. Mud tends to bust driveline parts (if you have traction) and packs hard into every little crevice, and then rust starts.
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