Rear Defogger in a K5 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

48cj2a · 03-21-2011, 07:44 PM

Was the electric rear window defogger option offered in the K5 Blazer?

68Timber · 03-21-2011, 09:52 PM

I'm inclined to say no just because I've never seen one, I'm somewhat older, and have always loved the K5's. But if I stepped out on that absolute "NO", then someone would post a picture of one they've had since new that still works. But I'm still leaning to the NO.

**Zoomad75** · 03-21-2011, 10:12 PM

I'd say no on the fact that with the window sliding up and down it would wear out the grid on the inside of the window after a couple of years of use. Plus the wires leading to the glass would flex and break where it attaches. Heck, even on rear windows that only lift up like Trailblazers, newer tahoe's and burbs the lug that is soldered to the glass break way too easy.

I think Suburbans from 73-91 with barn doors had them as an option in the later years. Don't quote me on that though!

48cj2a · 03-22-2011, 06:55 AM

I knew it was an option on the subs but was not sure if Barn Door or both it and T-gates.

I did no think the K5s ever had it but would be a great option if not for the rub factor.

Bones_GSXR · 03-22-2011, 10:33 PM

Never a option for the K5. GM just never did it on Blazers or Subs with the Tailgate. Barn Doors were offered though. Ford did offer them in the Bronco starting in 78 so the system did work with a roll down glass.

BLE 'BURBAN · 03-23-2011, 12:35 AM

My 90 burb with tailgate has the rear window defogger in it and I have seen numerous 86-91 K5's up here with it as well.

48cj2a · 03-23-2011, 07:04 AM

BLE is your Burb originally from Alaska? Curious if there was a HD cold weather option or something of the sort.

BLE 'BURBAN · 03-23-2011, 10:34 AM

It was originaly sold up here. I am the second owner of it. It started life out as a scottsdale model with the only factory options consisting of a rear auxillary heater, power tailgate window and rear window defroster as well as intermitant wipers.

I have since installed all factory accessories like power windows,door locks,and mirrors. Tilt column, cruise control. Repainted the interior a bahama blue. Added rear interior trim in the cargo area. Custom bucket seats with a center console/jumpseat. Overhead console and just finished upgrading all lights to L.E.D. & HID

03-21-2011, 07:44 PM	#1
48cj2a Registered User Join Date: Feb 2010 Location: Central, IL Posts: 599	Rear Defogger in a K5 Was the electric rear window defogger option offered in the K5 Blazer? __________________ 03 Suburban Z71 Z71 98 GMC Yukon SLT 4x4 Yukon 86 M1009 CUCV Project Milverado 48 Willys CJ2A 48CJ2A

03-21-2011, 09:52 PM	#2
68Timber I know the pieces fit Join Date: Nov 2007 Location: MONTGOMERY, AL Posts: 5,523	Re: Rear Defogger in a K5 I'm inclined to say no just because I've never seen one, I'm somewhat older, and have always loved the K5's. But if I stepped out on that absolute "NO", then someone would post a picture of one they've had since new that still works. But I'm still leaning to the NO. __________________ John 79 2wd Blazer (Bruiser) 85 M1009 Blazer (Sarge) build 74 Honda Z50 build

03-21-2011, 10:12 PM	#3
Zoomad75 K5Camper Join Date: Mar 2004 Location: Pueblo, CO Posts: 1,513	Re: Rear Defogger in a K5 I'd say no on the fact that with the window sliding up and down it would wear out the grid on the inside of the window after a couple of years of use. Plus the wires leading to the glass would flex and break where it attaches. Heck, even on rear windows that only lift up like Trailblazers, newer tahoe's and burbs the lug that is soldered to the glass break way too easy. I think Suburbans from 73-91 with barn doors had them as an option in the later years. Don't quote me on that though! __________________ Rob Z. 1975 K5 350/465/205/D44/12b 4" lift on 35's- RIP 1991 K5 8.1L/NV4500/241/D44/14b FWC Camper

03-22-2011, 06:55 AM	#4
48cj2a Registered User Join Date: Feb 2010 Location: Central, IL Posts: 599	Re: Rear Defogger in a K5 I knew it was an option on the subs but was not sure if Barn Door or both it and T-gates. I did no think the K5s ever had it but would be a great option if not for the rub factor. __________________ 03 Suburban Z71 Z71 98 GMC Yukon SLT 4x4 Yukon 86 M1009 CUCV Project Milverado 48 Willys CJ2A 48CJ2A

03-22-2011, 10:33 PM	#5
Bones_GSXR Registered User Join Date: Dec 2008 Location: Anchorage, AK Posts: 14	Re: Rear Defogger in a K5 Never a option for the K5. GM just never did it on Blazers or Subs with the Tailgate. Barn Doors were offered though. Ford did offer them in the Bronco starting in 78 so the system did work with a roll down glass.

03-23-2011, 12:35 AM	#6
BLE 'BURBAN In the Forgotten far North. Join Date: Jul 2007 Location: Anchorage, Alaska Posts: 2,627	Re: Rear Defogger in a K5 My 90 burb with tailgate has the rear window defogger in it and I have seen numerous 86-91 K5's up here with it as well. __________________ 1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade

03-23-2011, 07:04 AM	#7
48cj2a Registered User Join Date: Feb 2010 Location: Central, IL Posts: 599	Re: Rear Defogger in a K5 BLE is your Burb originally from Alaska? Curious if there was a HD cold weather option or something of the sort. __________________ 03 Suburban Z71 Z71 98 GMC Yukon SLT 4x4 Yukon 86 M1009 CUCV Project Milverado 48 Willys CJ2A 48CJ2A

03-23-2011, 10:34 AM	#8
BLE 'BURBAN In the Forgotten far North. Join Date: Jul 2007 Location: Anchorage, Alaska Posts: 2,627	Re: Rear Defogger in a K5 It was originaly sold up here. I am the second owner of it. It started life out as a scottsdale model with the only factory options consisting of a rear auxillary heater, power tailgate window and rear window defroster as well as intermitant wipers. I have since installed all factory accessories like power windows,door locks,and mirrors. Tilt column, cruise control. Repainted the interior a bahama blue. Added rear interior trim in the cargo area. Custom bucket seats with a center console/jumpseat. Overhead console and just finished upgrading all lights to L.E.D. & HID __________________ 1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade

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