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1991 Chevrolet K5 Full Size Blazer

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  • Author

So no outer roof anywhere so Carl from MMC took the challenge. I stopped by yesterday and man does it look great. Looks factory to me. Should have it either Tuesday or Wednesday and I’ll share pictures then 

  • Replies 83
  • Views 19.2k
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  • Author

MMC collision in Davison did a fantastic job fixing the roof. Check out the after pictures here. It was around $2500 for all the work.  I’ll try and get pics when they were working on it. I may have them paint my blazer in the winter

 

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  • 3 weeks later...
  • Author

The 700R4 just isn't right so I brought the Blazer to someone my dad knows "Dan the Trans man" since he did such a fantastic job on getting my dads 40 tuned in (as far as Transmissions go).

After about two days he looked it over and several bolts were loose that hold the trans as well as the bolts on the pan.  But what worries me is when he drained the fluid he found a bunch of brass or copper shavings in the oil.  He said its more than likely from the torque converter (which I already blew up a torque converter that Frayleys Transmission put in).  Dan's estimate to rebuild it the way it should be built is about $2000 and he needs three days.

Going to table that for now and just drive it.  Dan also had to replace the governor. The green gear at the end was very worn out.  It drives pretty good now but I don't feel I have the 4th gear like I use to but could all be in my head.

  • Author

It looks like I need to update my rear bumper.  The weight of a 37.5" tire is just too much for the Offroad Ltd Bumper.

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So I am looking at what DIY4x use to offer for a rear bumper tire carrier and they had one option which is this bumper

swing down tire carrier 4.jpg

I like how durable it is but I have some minor issues in comparison.
CONS

  1. I don't like the lights on angle, prefer them to be straight (silly I know)
  2. I love how the OffroadLtd Bumper had a place for my jack. Not sure how to work that in here
  3. Bummer for me is I can't have my tire cover anymore with this design.

PROS

  1. No movement from bumper with weight of tire like there is with OffroadLtd Bumper
  2. Easy to get tire
  3. Way easier to get access to tailgate

Need to find something like what DIY4x use to offer

  • Author

Changed Oil in my Blazer today. (325,288 miles)

5 quarts of Royal Purple 5w-30 (I have one more 5qt container then I'll probably move to Mobile One since it can be found everywhere and it performs as good if not better than Royal Purple)

Advance Auto didn't have my AC Delco PF25 Oil Filter so I went with a K&N HP 2002 filter (last time I get a K&N Filter and think I'll use FRAM next time)

Check out the Oil Filter Cross Reference site here

  • 3 months later...
  • Author

Ok need to update the "To Do List"

  1. I have to figure out my HVAC and why not getting air movement. Pretty sure the duct work is messed up. Wish some of these after market companies just made replacement (rebuild kit)..  not Vintage Air.. had that in my cutlass and it totally sucked.
  2. Roll Cage (seems silly and very expensive but I won't go on some of these trails with my kids in the back without one.
  3. Custom Dash (make it more usable).  I was always trying to keep everything original, now I just want it functional
  4. Transmission. Yea, still fighting this battle. It's not horrible but I don't trust it after Dan the Trans man found copper shavings at the bottom of the trans pan...  he said more than likely the torque converter is going bad (again).
  5. Storage. I would like to add some sliding storage to the back so I can keep many of my supplies secured (especially when the top is off)
  6. Rear Bumper. Get a more functional heavy duty bumper that I can carry my spare without worrying about the weight of it ripping it off.
  7. Center Console. Need somewhere to keep all your loose papers, HAM Radio, etc.
  8. Rock Sliders (DIY4x)

 

  • 10 months later...
  • Author

Rough time with putting the hard top rubbers on. No one really has any pictures

First thing to note is 4 seals are needed to put the K5 hard top back on

left side rail

right side rail

note: both attach to the bottom of the hard top and should be attached using something like 3M adhesive... spray on rubber and when tacky (not just wet) attach to fiberglass top and hold into place.. awesome if u have clamps)

inner cab (this seal attaches to the cab with adhesive)

outter cab (this seal attaches directly to the hard top) note: in the picture you will see black where I attaches the outter cab seal for my soft top but had to remove it to but my hard top back on)

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in this picture above you can see the inner seal is in place.

below picture is of the fiberglass hard top and you can see the black is where the old outter seal was. 

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here are pictures of the outter seal.

skinny side goes towards hard top and the little lip faces down (you will see that you can tuck that lip behind a groove found in the top. The groove isn’t all the way but spaced out like corners and stuff)

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  • Author

Chevrolet/GM K5 Blazers, Jimmys, and Square Body Truck part locations

  • DIY 4X (Pronounced DIY 4 by), custom fabrication parts such as bumpers, all kinds of mounting brackets, etc. for square bodies.  EXTREMELY WELL MADE PARTS!
  • Truck Shop A wide variety of hard-to-find restoration parts for square bodies.
  • LMC, Truck Parts and Truck Accessories for restoration.
  • Filthy Motorsports, King Shocks, Differentials, Off-Road Performance & Racing, Etc.
  • Rock Auto, Great Prices, Easy to find the parts for your vehicle, Easy Return Policy.
  • Summit Racing, general parts and racing/performance parts.
  • Rocker Switch Pros, really nice switches.
  • Hillbilly Wizard, Axles, Axles, Axles, heavy duty 14 bolt full floater 1 ton, custom axles, etc.
  • Off Road Design, custom suspension, 4-Link suspension,  hard-core vehicle components, etc
  • Stock Interiors
  • A1 Electric
  • Harris Performance, INC, good info on tweaking out performance from the TBI engines.
  • GMPartsGiant.com
  • AMSOIL – the best stuff you can put in your engine!  Join their Preferred Customer program ($10 for 6 months, $20 for 12 months) and save up to 25% and get free shipping on orders over $100.
  • 1 year later...
  • Author

I finally saved enough change to buy another transmission (4th attempt).

This time going through a company instead of local mom and pop shops.  In doing some google digging in search of a solid built off-road and street focused transmission I ended up ordering a trans called EXTREME 4x4 700R4 from PerformaBuilt Transmissions for $3395 total purchase price

Ordered: 2021/01/31

 

  • 2 weeks later...
  • Author

Dropped off my new Performa Built 700R4 Trans with new trans cooler to my buddy Al to have him swap transmissions.  He's also helping me figure out how to add a rear emergency/parking brake since I don't have one once I moved to calipers from drums.

We believe we are going the route that Lug Nut 4x4 has for around $280.  It uses Cadillac Eldorado calipers that have the attachment for the emergency brake cable.  Issue is these calipers are getting harder and harder to find so I may order another set of calipers from someone to just have in my inventory.

Quote

 

The kit features:

Calipers with a clever cable operated mechanism to actuate the brakes. The calipers should work just fine with your OEM parking brake cable.

Proven parking brake design is based off of 1976-1978 Cadillac Eldorado calipers (no longer in production) which allowed the parking brake to be set with a standard cable.

The mounting dimensions of these calipers are exactly the same as the JB6/JB7 brake calipers used in almost all of our kits — these calipers will mount on any brackets that accommodate the JB6/JB7 caliper

You can add substitute these calipers into most of our disc brake conversion kits, or order them separately here.

Whether you need a parking brake for inspection or for piece of mind, this kit works great.

 

Finally, while its up on the hoist, fixing my leaking gearbox.  It appears the retail stores (Adv Auto, Autozone, O'Reillys) all carry horrible quality gearboxes.  Mine just split right down the seem.  Garbage!

Also I just learned that AC Delco are all made in Mexico.  I always thought they were an American company.  Surprise!  At least its not the poor quality parts most retail stores get from China.

  • 3 weeks later...
  • Author

Got the bug..  its Spring Time and I want to go hit some trails but while my transmission is getting put in, I am working on comm's.

My center console is broke, cracked and I have been just too stubborn not wanting to let go of factory original but I took the plunge and just ordered the TUFFY SECURITY PRODUCTS DELUXE STEREO SECURITY CONSOLE - 12.5" WIDE BLACK from Tuffy Products.  I was hoping I could install the GMRS radio where the "stereo" would go.

So now to the GMRS radio choices and then antennas

GMRS Radio CHOICE #1

Wouxun KG-1000G GMRS Base/Mobile Two Way Radio

  • 30 GMRS Channels
  • 8 Built-In GMRS Repeater Channels
  • 999 Custom Memory Channels
  • 50-53.995 MHz Receive Only Frequencies (6m)
  • 108-179.995 MHz Receive Only VHF Frequencies
  • 320-349.995 MHz Receive Only Frequencies
  • 400-479.995 MHz Receive Only UHF Frequencies (70cm)
  • 700-985 MHz Receive Only Frequencies
  • AM 108-136MHz (RX)
  • Built-in NOAA Weather Channels
  • Repeater Capable
  • Tune Specific Frequencies Directly (Frequency Mode)
  • 8 Group Descrambler
  • 50W Maximum Transmit Power
  • FM Radio
  • 4 TX Power Levels
  • Channel Scan
  • Priority Scan
  • Supports 10 Scan Groups
  • Simultaneous Scanning on A/B Areas
  • CTCSS/DCS Tone Scan
  • Wide/Narrow Bandwidth Selectable
  • Busy Channel Lockout
  • Repeater Mode (Requires 2nd Unit)
  • Companding
  • Standard and Non-Standard CTCSS/DCS
  • Split CTCSS/DCS Tone Support
  • Large LCD Dual Frequency Display
  • Three Color Selectable LED
  • Backlit Keypad
  • Channel Name Edit and Display
  • Battery Meter
  • Minimum Operating Voltage Settings
  • Adjustable Cooling Fan Control
  • Automatic Temperature Testing
  • APO Power Management
  • Timeout Timer
  • Keypad Lock
  • Audible Button Beeps
  • English Voice Prompts
  • Dual 3.5mm External Speaker Ports
  • Offset Frequency ProgrammableReceive AM Transmissions
  • Auto-Detect AM Transmissions
  • Group Call, All Call and Selective Call
  • Incoming Caller ID Display
  • PC Programmable (Requires Optional Cable)
  • Dual Speakers
  • Multiple Speaker Output Settings
  • 3 Configurable Front Panel Buttons
  • Backlit DTMF Hand Microphone With Speaker
  • Cooling Fan
  • Remote Front Panel Installation Option
  • DTMF Encoding and Decoding
  • Stun and Kill Function
  • Reset
  • One Year Manufacturer Warranty
  • Dimensions: 5.51 in. x 1.73in. x 8.14 in. (140mm × 44mm × 207mm)

 

GMRS Radio CHOICE #2

MXT400 MICROMOBILE®TWO-WAY RADIO

  • Full 40W Radio
  • 8 repeater channels for increased communication range
  • 15 high power GMRS channels
  • Radio Dimensions: 1.6" x 5.5" x 7.3"
  • 142 privacy codes
  • Silent Operation
  • Channel Scan
  • Programmable Squelch
  • Keypad Lock
  • Monitor Mode
  • Keystroke Tones
  • Digital Volume Control
  • Backlit Display
  • Compatible with all Midland FRS/GMRS radios <-- what does this mean?  Does it mean its only compatible with Midland radios?  Does it mean there is something special regarding Midland Radios?

So when you look at the two GMRS radios they are very close in price and the Midland looks easier to use but WOW the extra features you get with the Wouxan is crazy awesome.  Difficult not to go this route but will it fit in my Tuffy Console.

Compare Dimensions

  • Console: 2 1/8H x 7 1/4W x 7Depth
  • Wouxun: 1 3/4H x 5 1/2W x 8 1/4D
  • Midland: 1.6H x 5.5W x 7 1/2D

So Height we are good, Width we are good but Depth I'm screwed so I will need to figure out something.  With the Wouxun radio I plan on taking off the face and moving it so maybe that fixes my issue.  I'm wondering if I can install the console a little higher to give me another 1 1/4" for Depth to allow the radio to fit fully.

Let's discuss ANTENNA's and mounts.  After much research on what I needed and how I wanted to mount I decided on the following:

1258-UHF.jpg1258-UHF mount (Tram 3/4" Hole Mount w/ Cable (NMO, PL259) that I plan on mounting on my bumper

The Tram 1258-UHF is a high frequency fully shielded 3/4" NMO hole mount.

  • Tram NMO 3/4" hole antenna mount
  • High frequency fully shielded NMO mount
  • Standard thickness mounting
  • Small gold contact pin
  • Solid brass NMO ring
  • Zinc diecast enclosed mount
  • Low loss up to 1.5 GHz
  • 17ft. RG-58 coax cable
  • Stranded coax conductor
  • UHF PL-259 male connector
  • Requires a 13/16" hole

MXTA26_600X400.jpgMidland MXTA-26 (6db gain) antenna

This 32-inch whip antenna quadruples signal output. When maximum range is your goal, the MXTA26 6dB gain whip antenna is the perfect choice. Great for off-roaders, farmers, and more, this long-range antenna is designed with a spring at the base and a coil at the center. The spring allows for extra flexibility to prevent damage from light, incidental contact when you’re traveling off the beaten path.

Spoke to Rob at buytwowayradios.com and I asked if I should consider a quad band or tri-band antenna and he said why?  All the KG-1000 can operate on is one band so why have two or three bands you can't even use on your antenna.  Instead get an antenna that is designed for GMRS only which is this Midland MXTA-26.

  • Author

So this rabbit hole I'm in started with needing a GMRS radio, so now that I got that coming (almost $500 later), I need an SPOD to wire up power.

I believe I'm going to go with BANTAMX HD FOR UNI WITH 36" BATTERY CABLES $915

It comes with 8 possibilities and I figure I'll run

  1. Fog Lights
  2. Rear Lights
  3. Lightbar
  4. Underhood Light
  5. ARB Compressor
  6. Front ARB Locker
  7. Rear ARV Locker
  8. GMRS Radio

That will keep me safe (as far as power goes) but going to wait for my Tuffy Center Console and the Radio to come in and then I'll start running wires.

  • Author

Soo, the Performa built 700R4 transmission is installed and I have two issues.

  1. Doesn't shift out of 1st gear until I get to 35mph
  2. A chirping noise when its in gear only (Drive or Reverse), no chirping when in park a revving..  just when there is a load.  Below is a very quick video of me brake torquing (so holding brake down while giving some throttle, while in reverse).

 

Marked the Torque Converter to show where it's attached to the flex plate, Loosened up the torque converter bolts pulled back the torque converter and spun it around and then pushed it forward making sure it will be attached to the flex plate in a different position.  No difference.

Reaching out to Perform Built for some suggestions.  I believe the governor is probably the fix for the not shifting until 35 but the chirping noise doesn't make any sense to me.  Its a new noise that developed with this new trans and torque converter.

 

  • 2 weeks later...
  • Author

Replaced the 153 tooth Flex Plate and no difference, so I ordered a TCI Torque Converter (1800 stall) from Summit and also a PowerMaster XS starter which will eliminate everything outside the transmission.

  • 4 weeks later...
  • Author

Now the death wobble is happening more often than not which the death wobble is expected since I don't have any steering stabilizer installed.  I have the high steer on reid knuckles on the Dana 60 front axle.

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So now on the hunt for a great steering stabilizer for my setup.

  • 1 month later...
  • Author

Dropped the Blazer off at Alpha Motorsports yesterday to see if they can tune it so it doesn't stall when its cold and maybe get it to not diesel when it shifts into 4th.

Flat Rate of $100/hr labor

  • 2 hr estimate to diagnose the engine issues

I also asked them if they have time if they could look into the suspension but my primary focus is to get it to run good.

 

Been talking on the phone with a guy named Randy.  Very nice and polite and very up front with costs and work that needs to be done.

 

  • Author

Talked to Randy today and they added the part but said it got installed wrong but they fixed it. They are moving mechanics from one project to another since they are short handed.

I did ask him if he could video the dyno and he said he would try but no guarantee since they are swamped.

I’ll chat with them when I get back into town so probably Friday 

  • 1 month later...
  • Author

Currently in a holding pattern until Alpha Motorsports is finished getting the Blazer running solid

  • Author

INTERIOR TASKS

  1. Fix Intermittent Wipers (should just be a new lever but could require a new wiper motor).  Also need to get the washer fluid solid so I can wash off any mud or dirt
  2. HVAC (currently don't really get much air flow so need to pull out the ducts and see if got a mouse nest or if blower motor is dying or even if the flappers aren't working)
  3. Replace Padding, Carpeting, Side Panels and install Sound Deadener.
  4. Install Rear 3 point seat belts
  5. Look into install rollbar to attach rear seatbelts to and potentially boat speakers for when the top if off

EXTERIOR TASKS

  1. Transmission Fix/Repair or Replace
  2. Bodywork (paint)
  3. Leaf Springs (squeaky)

Edited by Cowboy Denny

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