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First Blazer I looked at!

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Tall_Girl, Nov 29, 2001.

  1. Tall_Girl

    Tall_Girl Registered Member

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    Ok,

    I went to see a Blazer for sale for the 1st time. It had 31” tires. It had the overdrive. It was a 87 model and I took it for a drive. Man do all Blazers have that amount of power in them. Really a lot from what I felt. Well I took a look under the thing and checking with the pictures in the tech part of this side I think it has 10bolt axles, front and rear. So I guess I need a 12bolt for 35's?

    The only thing was, when I shifted past R through N to OD, the car jumped forward a bit. According to the owner this is probably wear in the driveshaft. Can that be true? I thought the rear differential would be a more logical choice. But he told me that it has been rebuild les then a year ago together with the transmission. He also said it had a 3.08 to 1 gear ratio. Is that ok for towing on 31”?

    Further, there were 2 radiators. One big one and one small one that was in front of the other and on the driver’s side. Is that for the transmission or could it be something else?

    Last things I noticed is that you were right about the space. Normally I need to put the seat as far back as it goes, but in the Blazer I had to move it a bit forward. Long time since I had to do that.

    Only thing bugging me was that it had no hitch. I don’t know if I can get those easily in this country. Biggest sting in the eye was that it is yellow. Not the beautiful bright or deep yellow, but flat, ugly.

    So this was my first impression on a K5 and my first ever drive in one. Tomorrow I’m going to the next one. I hope it has a better color.

    Greetings
    Lana


    6'5" tall Dutch girl about to upgrade her Jeep CJ7 to a full-size.
     
  2. Rebel88

    Rebel88 1/2 ton status

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    starting off...it should be 10 bolts front and rear on an 87...you dont necessarily need a 12 bolt for 35s...i ran 38s on a 10 bolt with upgraded gears(lower gears) and a new limited slip but decided to go to a 14 bolt for more strength...the shifting past R to OD and it jumping a bit i cant explain...my 88 does it a little as well...i wouldnt really worry about it to be honest with you...my dads 98 z71 does it a little as well...the 2 radiators issue...most likely the smaller one is an external oil cooler...that is what my 88 came with...the larger radiator has a separate tranny cooler built into the bottom section of it but with a 700r4 tranny i definately recommend an external tranny cooler in conjunction to the built in unit...i speak from experience im on my third 700r4...the others just burned up from heat buildup...

    As far as a hitch is concerned check out reese hitch, they can pretty much fit a hitch to any vehicle anywhere...you should be able to get one from them

    Other than that happy hunting and welcome to the world of blazers

    Later

    Have you driven OVER a Ford lately?
     
  3. rampage

    rampage 1/2 ton status

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    3.08s would suck for towing, but if you're going to swap in a 12 bolt then don't worry about it because you can do a gear swap at the same time. The slop that you feel when shifting from R to drive is normal. It probably has a gov-loc for the diff which is causing that more than likely. Mine did that for years until the spider gears gave out. Wear in the driveshaft?!?! The owner doesn't know what he's talking about, which could work to your benefit.[​IMG]. The second 'radiator' the you see is the oil cooler. I'd keep searching if I were you until you found one that is close to what will suit your needs, but keep this one in mind. BTW: did you check for rust? Also check the frame where the steering box connects for the infamous frame crack. Good luck in your search!
     
  4. Hossbaby50

    Hossbaby50 3/4 ton status

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    If I were you I'd keep searching until you found a Blazer with 3.73 gears, or at least 3.42's. They would suit your type of towing much better then 3.08's would.

    My Chevy isn't broken, its just out of gas.
     
  5. TXsizeK5

    TXsizeK5 1/2 ton status

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    I had 3.08's on 35's for a while. I mean.. it was really slow but had a nice high top spd. I mean it wasnt great but you could get aliong with it. As for towing.. if its a heavy trailer, you may wanna move up to 3.73 or if you wanna upgrade tires get 4.10 or 4.56.. i have 4.56 and love them although my engine winds out too fast... i rev 2500 in 3rd gear at like 50-55 or so. If you get a built 10bolt it can be really strong... my mechanic has had about 3 vehicles wich he built up the 10 bolts for and had lockers, etc. And none fialed on him.
    And if you think its powerful now if you get some 4.10 gears that truck would be flyin!


    6in 87' K5 w/ 35" BFG muds.
    305/Sm465/ NP208
    Kn, 4.56's.
    In desperate need of a rebuild.
    Next- Eaton mech locker... Flows.
     
  6. ftn96

    ftn96 1/2 ton status

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    That Blazer is not for you from what you've described that you want it for, unless you have another $2,000 sitting in the bank to do all the changes.

    Surgeon General's Warning:
    Viagra and steroids may be harmful to your spouse![​IMG]
    <a target="_blank" href=http://www.nashvillek5.freeservers.com>www.nashvillek5.freeservers.com</a>
     
  7. k5ntexas

    k5ntexas 1/2 ton status

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    i agree with most of the people here. you should find one that is better to suit you. thats what i messed up on. i saw this one and liked it and then a few weeks later a way better one came up for around the same price and i was kicking myself. so just wait around and see if u can find a one better and one that u will absolutely like. later

    jacob

    what is that low rider doing under my k5?
    wow nice lil jap car. whats it good for?
     
  8. MudFrog

    MudFrog 1/2 ton status

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    Time for my oppinion [​IMG].
    87 would be a good choice. A few things you should consider though. First off I'm assuming it has a factory oil cooler like some do. This would be the smaller one in front of the Radiator. If your going to do any towing at all you need to get a big ol tranny cooler. It should have 10 bolts front and rear as well as the 700R4 and either NP208 or NP241.. don't remember what year they switched from 208 to 241. For towing I would steer away from the 3.08's especially if running 35's. I ran 35's with 3.08's in my old truck and wen't through 4 of the 700R4's in a year and a half. However I did wheel with the 10 bolts and they never broke. But it was mainly trails and mud not rocks. The 700R4 is known to jerk when you shift into gear so I wouldn't be too worried about it jumping. You should however go ahead and get the ujoints replaced when you buy one. That way that is one less thing to worry about for a while. Hope this helps some.

    89 K5 Silverado, 4", 33's, 3/4 ton axles
    <a target="_blank" href=http://mudfrog.rockcrawler.com>http://mudfrog.rockcrawler.com</a>
     
  9. Chaz88K5

    Chaz88K5 1/2 ton status

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    HEY WHATS WRONG WITH YELLOW!!! sniff sniff i am goin to cry now [​IMG]

    <font color=green>Chaz</font color=green>

    [​IMG]<a target="_blank" href=http://community.webshots.com/user/chaz88k5>http://community.webshots.com/user/chaz88k5</a>[​IMG]
     
  10. Bubba Ray Boudreaux

    Bubba Ray Boudreaux 1 ton status

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    That smaller radiator should be the condensor for the AC if it has AC. I have an '87 myself, but got lucky and found it with a Dana 44 upfront and a 12 bolt out back. It's a dream with fuel injection and all.

    Bubba Ray Boudreaux,
    "If I had wanted a plastic ride, I'd married Pamela Anderson."<a target="_blank" href=http://community.webshots.com/user/mdntrdr1>http://community.webshots.com/user/mdntrdr1</a>
     
  11. K5 NUTT

    K5 NUTT 1/2 ton status

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    Lana...first off welcome aboard! I've read a couple of your posts and it seems to me the member who could help you out the most with your purchase and the where to find parts would be Espen88K5...he lives in Harstad Norway. Send him a PM...

    Azblazer

    1979 K5 350 TBI
    1976 K5 Chalet
    If it ain't got arizona pinstriping.....you ain't wheelin the pee outa her!
     
  12. four_by_ken

    four_by_ken 1/2 ton status

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    I would say that the smaller radiator in front is for the AC, not the oil... but it could be either.

    To address another comment made...
    No 10 bolt is strong... they can be built to be stronger than stock, but I would never call one strong. This is an on going battle on this list.
    If they never had a 10 bolt fail, they are not using them with larger tires and a larger motor. Or, they are REAL lucky.
    For what you are planning on doing, I would say a 10 bolt would give you no problems.


    Ken H.


    '86 K5 up and coming
    14 bolt(Detroited),10 bolt,39.5 Boggers rear,
    TSLs front, 468 BBC, 350 trans, 205 transfer
    Rust free in Michigan!
     

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