The 1947 - Present Chevrolet & GMC Truck Message Board Network - rust repair on the '77...here goes nothin

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- - rust repair on the '77...here goes nothin (https://67-72chevytrucks.com/vboard/showthread.php?t=740291)

Re: rust repair on the '77...here goes nothin

[QUOTE=mickeykreg;

I was thinking since the motor was out and the floor was all cut up that now would be a good time for a NV4500.
[url=https://flic.kr/p/GhtU62]https://farm5.staticflickr.com/4483/...dd74dbd5_z.jpg[/url]

What is that horizontal bracket for on the left side of the trans over to the clutch housing above the release lever?
That's an AA clutch housing, right?

Re: rust repair on the '77...here goes nothin

Quote:

Originally Posted by andyh1956 (Post 8095473)

What is that horizontal bracket for on the left side of the trans over to the clutch housing above the release lever?
That's an AA clutch housing, right?

Yep, it's a AA bell housing. Bracket is a brace for the bell crank pivot ball bracket that bolts on where a slave cylinder would go. I guess it's AA's answer to make it possible to run either a manual or hydraulic clutch, which is cool. Kind of a trashy set up, but I'll switch to a slave cyl. some time later, whenever I can find the 85-87 pedal assembly.

https://farm5.staticflickr.com/4552/...ed121fe2_z.jpg

Re: rust repair on the '77...here goes nothin

Re: rust repair on the '77...here goes nothin

Got it started and moved outside long enough to clean up my dungeon. Drove around the block cause I couldn't not. 355 running good for the first time. Need to go break it in, but lots of work to do first.

https://farm5.staticflickr.com/4737/...6dbcbfd6_z.jpg

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Got sick of bodywork so I built this out of a left over piece of rocker. Just messing around, don't know if I like it, but am looking for somewhere to put gauges, audio jacks, trailer controller, USB charging, without having stuff spread all over the place.

https://farm5.staticflickr.com/4682/...74165def_z.jpg

https://farm5.staticflickr.com/4537/...88b22ff6_z.jpg

Re: rust repair on the '77...here goes nothin

With that 4500 shifter in place do you think there is room for an underdash ac unit? Sure don't look like it.

Re: rust repair on the '77...here goes nothin

Quote:

Originally Posted by andyh1956 (Post 8106198)

With that 4500 shifter in place do you think there is room for an underdash ac unit? Sure don't look like it.

Not sure about an under dash set up. I'll probably go with a vintage air system anyway.
4500 shifter is actually further back than the old one.

Couple pics here:
http://67-72chevytrucks.com/vboard/s...d.php?t=749980

Re: rust repair on the '77...here goes nothin

Passenger side requirement was almost identical to driver side.

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Stick stuff back together now. Outer rocker was still fine so I cleaned it up and got it ready. Like on the driver side the outer was replaced on a repair in the past. Inner rocker wasn't replaced so no debris could build up between the inner and outer.

Kick panel first.
https://farm5.staticflickr.com/4601/...6a48a126_z.jpg

Inner Rocker
https://farm5.staticflickr.com/4596/...4cb06cf5_z.jpg

inner and kick with debris clean out holes that I added.
https://farm5.staticflickr.com/4634/...f708573b_z.jpg

floor support
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I got the replacement floor pan from Tabco who said it's for a blazer, but it's actually for a truck. Flat Blazer floor is much different than a truck so I had to cut the stamped part of the new floor out and use a piece of 18 gauge that I got at the steel supply. Such is life with these Taiwanese replacement panels, actually most of the panels I've used so far have been pretty good.

Re: rust repair on the '77...here goes nothin

Finally got the floor rebuilt to the point of getting serious about how these seats are going to fit. I got the pair for $22 on sale day at the junkyard, but then dropped about $1300 to get them re-skinned in leather, which I didn't think was too bad of a deal. The low back seats had me freaking out about whiplash protection from getting hit in the ass by a texting driver. Anyway, here's what I did. Hope it's helpful to somebody.

Junkyard seats $22
https://farm5.staticflickr.com/4523/...44267cb9_z.jpg

https://farm5.staticflickr.com/4734/...f4f0ef84_z.jpg

Old seats/New seats
https://farm5.staticflickr.com/4549/...bbd2db01_z.jpg

Now just to make them fit. Started with a piece of 2'x2' 3/16" steel plate. Man I wish I had a plasma cutter.
https://farm5.staticflickr.com/4646/...14920cd3_z.jpg

Driver side
https://farm5.staticflickr.com/4689/...2da25905_z.jpg

Passenger side
https://farm5.staticflickr.com/4739/...760237ee_z.jpg

POR15'd
https://farm5.staticflickr.com/4680/...f4d0b304_z.jpg

Brackets original to the 99 seats get bolted to the adapter.
https://farm5.staticflickr.com/4679/...79e0a77e_z.jpg

Seat belt gets bolted to this. Original floor is sandwiched between this and the 3/16" plate.
https://farm5.staticflickr.com/4725/...3fafe2ed_z.jpg

I decided not to make the new passenger seat tilt forward. After quite a few test fits it looks like when the new seat back is folded forward and the seat is slid all the way forward it provides almost as much room as the original gave when it was tilted forward.

Re: rust repair on the '77...here goes nothin

This bedside patch was an entire day! Whoever did this repair in the past didn't even bother to do any welding. Sheetmetal is screwed in place and covered with nearly a 1/2" of bondo in places. Glad to be getting this fixed!

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Next up to bat is the bed, stay tuned.
https://farm5.staticflickr.com/4733/...3cfd23ce_z.jpg

Re: rust repair on the '77...here goes nothin

your 77 blazer looks like the 78 blazer I bought out of north Carolina that came out of ohio I brought it to ga. on a rollback got out one day and took off the top . when I took it off both sides of the blazer just fell to the ground it was repaired a one time and it was done poorly just bonded back together with rust and bondo was gona try to drive it but I was scared the rest of the body would fall off the first time I turned a corner :waah:

Re: rust repair on the '77...here goes nothin

now that you have the rockers all together I recommend spraying oil up in there everywhere. Seen many where the top of the rocker rots first. Nice work

Re: rust repair on the '77...here goes nothin

Quote:

Originally Posted by grillzy (Post 8154396)

now that you have the rockers all together I recommend spraying oil up in there everywhere. Seen many where the top of the rocker rots first. Nice work

I used to have a 4runner that I did that with, seemed to work ok for the salty roads.
On this one, I've been using this stuff from Eastwood to get behind weld seams and such. No big deal. It's a driver and if it rusts I'll fix it again.

http://www.eastwood.com/eastwood-int...z-aerosol.html

Re: rust repair on the '77...here goes nothin

nice work on the roof repair. My 73 burb has rot in the roof and I've been having a hell of a time finding any info on repairing the roof. Been thinking of replacing the whole roof skin but not sure if it will save much in time comparing to replacing pieces like you did. Do you know if anyone makes a replacement roof?

Re: rust repair on the '77...here goes nothin

Quote:

Originally Posted by catch2otwo (Post 8159459)

I had the same problem as your having. That's what drove me to cut the roof out of the junkyard. Glad I did that, cause for $50 I got a bunch of repair pieces that I needed. As it turns out I ended up using more than just the roof skin, such as A and B pillar parts. Also used some of the inner skin, and the support beam that runs width wise between inner and outer skin.
I don't know of anybody that sells a replacement roof skin. The more I dig into this thing the more surprised I am at how many parts are not available.

If I were to do it again I'd find another donor roof, but I'd keep the outer skin intact and replace it as a whole, (like the kid in this video has done). Get the old outer skin off first so you can see what you have to deal with and go from there. With a donor roof you'll have what you need. That's what I would do, but a suburban roof will obviously ad a bit of complexity.

Rusty Roof Replacement - 1968 Cougar - YouTube

Re: rust repair on the '77...here goes nothin

Thats kind of what I was thinking. I figured I would cut the roof off at the pillars. I was afraid of finding more rust like you.

Re: rust repair on the '77...here goes nothin

The bed floor: :waah: I've watch other people do this and have dreaded the job myself, but it loomed over my head. I started this project thinking the bed was fine and I just needed to replace the tailpan and trailing edge of the bed. Once I started to poke around I found there was no other way than to remove the entire bed floor to fix it. I found hidden rust in all the mounting flanges and surface rust under the bed that couldn't be ignored. This was the final big piece of metal work required and it took almost a full month of working on it everyday. I ran into several problems with replacement panels that I'll try to mention here as clear as I can.

Breaking it down...

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As you know, the front half of the bed floor changed in '78 to have the step down so rear seat passengers would have a better sitting area. It would be awesome if the aftermarket sheetmetal companies like LMC and Auto Metal Direct didn't advertise the front floor section as being the same from 73-91. Anyway, I couldn't find the replacement, so I needed to figure out a way to save the front half of the floor which required drilling out a million spot welds that attach the cross sill supports. The Blair spot weld cutter makes it a bit easier.

https://farm5.staticflickr.com/4634/...9fd3c1f6_c.jpg

https://farm5.staticflickr.com/4733/...4a14f672_c.jpg

AMD 717-4073 to replace existing cross sills.
https://farm5.staticflickr.com/4680/...dfc1c257_c.jpg

close enough...I guess
https://farm5.staticflickr.com/4594/...752462ff_c.jpg

In order to determine how much of the bed floor I needed to save I needed the replacement rear floor. I ordered AMD 791-4373L and R through JEGS. Free shipping on such a big piece was remarkable! The fit and everything on these pieces were really good compared to most Taiwanese replacement panels. I had to do minimal beating to make these fit. I also can't say enough about how good my experience was with AMD packaging the shipment to avoid damage in transit.
AMD 791-4373 left and right.
https://farm5.staticflickr.com/4761/...91c46d0c_c.jpg
Comparing new rear floor gave me a place to cut front half of old floor out.

Saving the old front half.
https://farm5.staticflickr.com/4758/...c95a1e0a_c.jpg

https://farm5.staticflickr.com/4658/...3d28e6c8_c.jpg

Eastwood PRE and rust encapsulator.
https://farm5.staticflickr.com/4650/...050b5083_c.jpg

https://farm5.staticflickr.com/4612/...a70af4e3_c.jpg

Eastwood rubberized undercoating.
https://farm5.staticflickr.com/4716/...03202340_c.jpg

https://farm5.staticflickr.com/4756/...f2ca9ae8_c.jpg

Bed rear pillar posts next...
My existing pillars were mostly ok except for the very bottom. I ordered Goodmark GMK-4144-828-73 left and right. These sucked pretty bad and I had to return them to Summit. I ended up building my own replacement pieces from scratch.

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Left side
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While the floor was out I decided it'd be a good time to replace the fuel tank, sending unit, tank straps, hard lines, soft lines, re-do the wiring harness, and POR15 the frame, and fuel tank skid plate.

https://farm5.staticflickr.com/4758/...5653f52b_c.jpg

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Got sick of doing what I was doing so I threw this away
https://farm5.staticflickr.com/4537/...88b22ff6_c.jpg

...and built this
https://farm5.staticflickr.com/4702/...31a60d26_c.jpg

Floor sort of in...
https://farm5.staticflickr.com/4694/...c9907d33_c.jpg

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New rubber body mounts from LMC are looking like I'll get a bit of body lift.

https://farm5.staticflickr.com/4761/...6b90b4c5_c.jpg

I'd also like to LMC source a better mounting bolt for this kit. I'd be glad to pay the extra $2.

https://farm5.staticflickr.com/4659/...0fee6dbd_c.jpg

https://farm5.staticflickr.com/4678/...5388433a_c.jpg

Kit also requires you to re-use these two pieces, which I thought was a bit lame. Luckily mine were ok, but if these are rusted out you'd be SOL.

https://farm5.staticflickr.com/4769/...f877d8b3_c.jpg

Floor looking a little better now

https://farm5.staticflickr.com/4630/...211506f3_c.jpg

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https://farm5.staticflickr.com/4706/...a736692a_c.jpg

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...and a rad new order of made in USA hardware from Fastenal

https://farm5.staticflickr.com/4762/...043f8aa7_c.jpg

I think that pretty much does it for rust repair and metal work. Body work and paint coming next.

Re: rust repair on the '77...here goes nothin

You make it look easy. Nice work.

Re: rust repair on the '77...here goes nothin

Re: rust repair on the '77...here goes nothin

I thought I'd try using this stuff

https://farm5.staticflickr.com/4712/...556f5ca7f8.jpg

...on the floor instead of the peel & stick product. Maybe I didn't do something right, but after it dried the floor still sounded like a drum when I knocked on it with my knuckle.

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so I did this...

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I used this Eastwood two part seam sealer which gave me acceptable results. A couple places that had larger gaps got the strip calk first then the 2K on top

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The Mandarin Orange interior has always been one of my favorite things about this blazer. I've never found anything that matches it though, not even spray paint. Somehow I needed to save the orange carpet. Since the NV4500 swap my trans tunnel carpet holes wouldn't line up that part would have to get cut.

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Got bored again so I built this shifter (on the left), which I'll probably not like in a couple weeks.

https://farm5.staticflickr.com/4609/...4a589585_c.jpg

Next up continues the quest to save the orange interior...

https://farm5.staticflickr.com/4677/...0fdb6f0b_c.jpg

Re: rust repair on the '77...here goes nothin

Wow, ton of work and nice job! Did you know how to weld before taking this thing on? I've thought about it but have very little experience with welding. But I keep finding more and more rust spots in my truck... :(

Re: rust repair on the '77...here goes nothin

Might have to steal the gauge / phone charger idea for my wife's Jimmy, that looks pretty slick.

Nice job on the floor replacement, glad I didn't have to get into that on the Jimmy, just needed the sections behind the front seats & one tailgate post.

Re: rust repair on the '77...here goes nothin

WOW!!! What a gang of work! Nice job.

Re: rust repair on the '77...here goes nothin

Man that looks good! You'll be ready for Baja again soon.

Re: rust repair on the '77...here goes nothin

Quote:

Originally Posted by Ski-me (Post 8179751)

I didn't have much experience before. My first project was an exhaust system using flux core. Welds are ugly, but it's still alive four years later and some serious abuse in Baja. Using gas gives a much better result. There's some really cool machines available right now that'll do all kinds of stuff. Pick up some steel scrap and play around with settings, you'll figure it out.