Bubbling cab corners


1994xlt

Forum Member

Joined
Oct 6, 2025
Messages
330
Points
101
City
Morton
State - Country
IL - USA
Vehicle Year
1994
Vehicle
Ford Ranger
Drive
4WD
Engine
4.0L
Transmission
Automatic
Total Lift
Stock
Total Drop
Stock
Tire Size
good question
Hello all, I have a 1994 ford ranger and it is in the what I would consider early stages of rust. The cab corners are bubbling, no holes YET. But will be appearing soon. I am trying to fix it or semi slow it down. I have a welder and stuff but I would prefer to not weld patches in yet. Also it’s a cayman green or teal idk it’s a not like black or white easy paint match lol.
 
Well, unfortunately if it’s bubbling, it’s already deep. You can try to grind the bubbles out and chase any rust fingers, use a rust converter, bondo/prime/paint and spray some oil or WD40 down into the inside of the cab corner to hold it off awhile, but that’s about where you’re at.

Ford liked to put a bit of foam down in the cab corners and stuff and that encourages rust from the inside out if it ever took on any moisture.
 
Well, unfortunately if it’s bubbling, it’s already deep. You can try to grind the bubbles out and chase any rust fingers, use a rust converter, bondo/prime/paint and spray some oil or WD40 down into the inside of the cab corner to hold it off awhile, but that’s about where you’re at.

Ford liked to put a bit of foam down in the cab corners and stuff and that encourages rust from the inside out if it ever took on any moisture.
Well shoot.
 
Well shoot.
Yea like he said... if it's bubbling, it's already gone under there most likely. Paint match will be a for sure problem, but it probably won't be as bad as you think. Check my thread here "94 gets needed rust repairs"... I used the factory code to get the PPG paint and it is definitely darker, but it's really not that bad. We used the body line as the transition and it's barely noticeable unless you know to look for it.
The cab corner job isn't terrible at all, but study it real well and make sure this doesn't also turn into a rocker panel job too as the rust can migrate through there, so you'll wanna build your parts list before you start. You have to pull the bed off to do it which also isn't all that bad as long as the bolts all come out like they should. With a friend, you can pull the entire bed in like half an hour (plus beer)... it's a few bolts and unplugging a couple of lighting connectors. It also makes for a good opportunity to do rust removal and clean up the frame while it's apart if you are so inclined as I was.
 

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