![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 |
The Few, The Proud
![]() Join Date: Jun 2007
Location: Ball Ground, Georgia
Posts: 1,830
|
Riddle me this.......cab question
In doing some work on the cab of my '69 this weekend I noticed a bow on the back of the cab. In the pictures below you can see the rear window pinch weld bow out at least a 1/4". The top of the window opening has an ever so slight bow. Is this normal??? There is no obvious damage to this area of the cab. I've never noticed it before and I don't have another cab to compare it to.
Thoughts???? ![]() ![]()
__________________
Shannon |
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: May 2010
Location: Edmonton, Alberta
Posts: 3,847
|
Re: Riddle me this.......cab question
I just went out and looked at mine, it is straight as an arrow.
Posted via Mobile Device
__________________
--------------------------------------------------------------- Jason. 68’ GMC shortbox https://67-72chevytrucks.com/vboard/...d.php?t=794201 72' 2WD Blazer http://67-72chevytrucks.com/vboard/s...d.php?t=425385 67' LongBox C-10 http://67-72chevytrucks.com/vboard/s...d.php?t=691845 InstaGram ybnorml67 |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Nov 2009
Location: newbury park california
Posts: 1,038
|
Re: Riddle me this.......cab question
I think is is normal for our trucks or any product made by gm. It's always plus or minus 5/16 on tolerance's across the board. I would recommend blocking it as straight as you can and call it even. Don't stress on how bowed it is no one will see it but you when it's done. Cheers, Pat
Posted via Mobile Device |
![]() |
![]() |
![]() |
#4 |
Registered User
Join Date: Apr 2000
Location: Bonne Terre, Mo
Posts: 3,005
|
Re: Riddle me this.......cab question
No freaking way that rolled out like that. Just can't see that happening. 5/16th tolerance on panel gaps, yes. But not on a bow there. My dad had a body repair shop cut a later '75 model cab below the windshield and under the rear window from a dropped tree mashed to the seat on the cab and when he was done you couldn't tell it even if you knew it.
__________________
'69 Chevy Long Fleet & '71 GMC Short Step & Project "ODD BALL" "You can wash a pig, soak it in most expensive perfume. In the end it is still just a pig." ODD BALL build thread http://67-72chevytrucks.com/vboard/s...d.php?t=478629" |
![]() |
![]() |
![]() |
#5 |
Registered User
Join Date: Apr 2004
Location: arkieland
Posts: 1,070
|
Re: Riddle me this.......cab question
I've run into the same thing on a '64, with no sign of any damage at all. Monday or Friday unit, IMO.
|
![]() |
![]() |
![]() |
#6 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
|
Re: Riddle me this.......cab question
Wouldn't that bow affect the rear windshield? Does the top of the opening match?
Seems to me a good shop could reshape that with some type of hydraulic fixture???
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
![]() |
![]() |
![]() |
#7 |
The Few, The Proud
![]() Join Date: Jun 2007
Location: Ball Ground, Georgia
Posts: 1,830
|
Re: Riddle me this.......cab question
Thanks for the replies. I've been around other bare cabs before and have never noticed this bow before, never thought to look I guess. My cab is currently sitting on a dolly high enough for this area to catch my eye. The top pinch weld is nearly straight, but not perfect. There is no obvious damage inside the cab or on the back panel.
Here's a shot of the back panel. ![]()
__________________
Shannon |
![]() |
![]() |
![]() |
#8 |
Registered User
Join Date: Nov 2009
Location: newbury park california
Posts: 1,038
|
Re: Riddle me this.......cab question
We all need to remember our trucks were built to be trucks ( tractors with doors) like it or not they were put together as fast as possible. From one stamping plant to another it would be common for the dies to just plan wear out of the initial tolerance. I have owned my fair share of these trucks and have never seen the top of a door to cab reveal even close to correct on a stock truck. My dads truck, bought new, loaded70 3/4 ton had a cab with a bow across the belt line area of1/4" inward . (Never been hit) cheers, Pat
Posted via Mobile Device |
![]() |
![]() |
![]() |
#9 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
|
Re: Riddle me this.......cab question
Another possibility is that after 40 years the window has been replaced and the bend was done then.It probably isn't out enough to notice when the window and seal are in place.
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
![]() |
![]() |
![]() |
#10 | |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
|
Re: Riddle me this.......cab question
Quote:
Granted that's true, but the gap on his truck looks to be more than 1/4"-maybe 1/2" or more. The concern would be the stress put on the rear window glass. If the top is pretty close to straight, I would think a fixture of some sort could press this back to being fairly straight. At least that would be my guess.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
|
![]() |
![]() |
![]() |
#11 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
|
Re: Riddle me this.......cab question
This is probably a good explanation. Sometome ago I was watching a window repair guy replacing a windshield on a truck. He was sitting on the seat and with his feet pushing and kicking the windshield out from the inside. Maybe they did the same on this one??
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
![]() |
![]() |
![]() |
#12 |
Vintage 4x4s
Join Date: Sep 2010
Location: Prior Lake, MN
Posts: 4,305
|
Re: Riddle me this.......cab question
Curious how common this is. I will try to check some of the cabs here.
__________________
67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ![]() 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6 |
![]() |
![]() |
![]() |
#13 |
The Few, The Proud
![]() Join Date: Jun 2007
Location: Ball Ground, Georgia
Posts: 1,830
|
Re: Riddle me this.......cab question
Some interesting opinions here.
The cab actually had glass installed when I brought it home. ![]()
__________________
Shannon |
![]() |
![]() |
![]() |
#14 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
|
Re: Riddle me this.......cab question
I like that cab. Sure wish I could find one over here in good condition.
I curious also if other trucks are bowed so checked my 68 and it's straight. I will check my 69 later in the week since it's not here. btw: since you mention the truck had glass already and you didn't bow it by removing it, then it may have been done sometime ago. After 44 years who knows.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
![]() |
![]() |
![]() |
#15 |
Registered User
Join Date: Aug 2005
Location: Brentwood, TN
Posts: 23
|
Re: Riddle me this.......cab question
I know in my truck I drive with the seat all the way back and it contacts the cab here. Get a big enough guy in the middle wearing his seatbelt in an accident and I could see where this could happen without breaking the window. I have a hard time believing this damage was done while replacing the rear window. The rear comes out a whole lot easier than the front. When they are broken the glass is in a million tiny pieces and the rubber comes right out and installation is pulling in.My vote is for the seat pushing below the pinch weld.
__________________
1970 CST-10 350/350 turbo 1978 Camaro Z-28 Clone 350/Saginaw 4-speed |
![]() |
![]() |
![]() |
#16 |
The Few, The Proud
![]() Join Date: Jun 2007
Location: Ball Ground, Georgia
Posts: 1,830
|
Re: Riddle me this.......cab question
Like some of you, I don't think this was done by replacing the window. I removed the glass from the cab myself back before I had it blasted. I cut the weatherstripping on the back glass and it popped right out with no issues. My blaster does cabs and tons of other car parts, so I don't think he would've damaged it in any way, just because he's been around for a while doing this kind of work.
I can't help but wonder though if I would cause any damage, like a crease, if I tried to straighten it. It doesn't have to move much though. BTW: 68gmsee, I bought this cab and doors for $200 5 miles from my house. ![]()
__________________
Shannon |
![]() |
![]() |
![]() |
#17 | |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
|
Re: Riddle me this.......cab question
Quote:
Re. reason for bowed cab: We're just throwing out possibilities. I removed the rear windshield on my 69 last year by cutting around the rubber seal. A previous glass installer had used silicone sealer some 15 years ago so it was somewhat stuck but I did removed it without doing any damage to the cab. As I mentioned before, the biggest concern would be the new glass. I know the seal is somewhat forgiving but you may also get some wind noise with all the windows closed if there was a slight gap.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
|
![]() |
![]() |
![]() |
#18 |
The Few, The Proud
![]() Join Date: Jun 2007
Location: Ball Ground, Georgia
Posts: 1,830
|
Re: Riddle me this.......cab question
I'll probably go ahead and try to straighten it. It just puzzled me when I first saw it.
Thanks for the comments everyone.
__________________
Shannon |
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|