RPO X45 factory topper ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

80SPORT · 04-22-2015, 11:15 PM

Looking at a factory build sheet on a 1977 Chevrolet truck that is listed for sale...one of the options listed is a factory box cover RPO X45 ....anyone else have this RPO...I could not find it listed in my parts book.

Keith Seymore · 04-23-2015, 07:12 AM

I've never heard of it before.

It doesn't appear in the generic info for '77 in the GM Heritage Center archive, that I can find:

https://www.gmheritagecenter.com/doc...olet-Truck.pdf

It does not appear in any of my internal RPO listings.

I've never seen one in any GM assembly plant.

So - I don't know what you've found there.

K

dieseldawg142 · 04-23-2015, 12:17 PM

do you have a picture of this topper?
is it a canopy, or some kind of tonneau cover?

bigblock73 · 04-23-2015, 12:32 PM

It says sliding front window on the sticker, so it must be a topper of some kind...never heard of this either.

**thinair** · 04-23-2015, 06:42 PM

The 1976 Chevrolet Truck Accessories Catalog shows a tonneau cover. It was available in either black or white for Chevy fleetside or El Camino pickups.

80SPORT · 04-25-2015, 02:11 PM

I think it looked like the one in this picture ...

dieseldawg142 · 04-25-2015, 02:15 PM

Quote:

Originally Posted by 80SPORT

I think it looked like the one in this picture ...

sorry, echh! ugly....

russgt · 04-25-2015, 09:32 PM

Did it use K5 side glass?

dieseldawg142 · 04-26-2015, 01:20 PM

Quote:

Originally Posted by russgt

Did it use K5 side glass?

it does look like a stretched blazer top....

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SS Tim · 06-14-2015, 02:47 PM

Clip from the 1976 Canadian GMC brochure.

**1774btcrew** · 06-14-2015, 07:53 PM

The rear windows do look like they are Blazer. It would look good as a short bed topper

04-22-2015, 11:15 PM	#1
80SPORT Registered User Join Date: Mar 2008 Location: red deer alberta Posts: 777	RPO X45 factory topper ? Looking at a factory build sheet on a 1977 Chevrolet truck that is listed for sale...one of the options listed is a factory box cover RPO X45 ....anyone else have this RPO...I could not find it listed in my parts book. Attached Images

04-23-2015, 07:12 AM	#2
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,193	Re: RPO X45 factory topper ? I've never heard of it before. It doesn't appear in the generic info for '77 in the GM Heritage Center archive, that I can find: https://www.gmheritagecenter.com/doc...olet-Truck.pdf It does not appear in any of my internal RPO listings. I've never seen one in any GM assembly plant. So - I don't know what you've found there. K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

04-23-2015, 12:17 PM	#3
dieseldawg142 Registered User Join Date: Jul 2011 Location: back 40, bc Posts: 3,817	Re: RPO X45 factory topper ? do you have a picture of this topper? is it a canopy, or some kind of tonneau cover?

04-23-2015, 12:32 PM	#4
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,826	Re: RPO X45 factory topper ? It says sliding front window on the sticker, so it must be a topper of some kind...never heard of this either. __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

04-23-2015, 06:42 PM	#5
thinair thinair Join Date: Jun 2004 Location: omaha,ne Posts: 1,004	Re: RPO X45 factory topper ? The 1976 Chevrolet Truck Accessories Catalog shows a tonneau cover. It was available in either black or white for Chevy fleetside or El Camino pickups.

04-25-2015, 02:11 PM	#6
80SPORT Registered User Join Date: Mar 2008 Location: red deer alberta Posts: 777	Re: RPO X45 factory topper ? I think it looked like the one in this picture ... Attached Images

04-25-2015, 09:32 PM	#8
russgt Registered User Join Date: May 2008 Location: Waukesha, WI Posts: 904	Re: RPO X45 factory topper ? Did it use K5 side glass? __________________ 70 stepside 76 blazer 86 Silverado 20 Max Trailering 6.2 Crew 71 Nova SS My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=363634

06-14-2015, 02:47 PM	#10
SS Tim Registered User Join Date: Aug 2010 Location: Edwards, CA Posts: 7,503	Re: RPO X45 factory topper ? Clip from the 1976 Canadian GMC brochure. Attached Images __________________ Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID Blazer SPID Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders Do you have a 1972 Plaid Pickup? Plaid Blazer ** Plaid Suburban

06-14-2015, 07:53 PM	#11
1774btcrew Senior Member Join Date: Jun 2009 Location: Phoenix AZ Posts: 4,557	Re: RPO X45 factory topper ? The rear windows do look like they are Blazer. It would look good as a short bed topper __________________ AZPartsLocators on Instagram 1972 Cheyenne Super Short Bed big block "Blackie" 1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog" 1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck.



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