Your nightmare stories

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

shiftpro

Full Access Member
Joined
Aug 31, 2012
Posts
4,855
Reaction score
6,086
Location
BC Canada
First Name
shiftpro
Truck Year
73-87
Truck Model
1500, 2500, 3500
Engine Size
350, 383, 454, 496!
They say a picture is worth a thousand words, so here's my story. No punctuation required.

You must be registered for see images attach
In the spirit of good grammatical habits, let's trim it down to two words...

"It's ******".
 

Wi chevvy guy

Full Access Member
Joined
Mar 31, 2019
Posts
63
Reaction score
22
Location
Toledo ohio
First Name
James
Truck Year
88
Truck Model
V10
Engine Size
350
Thx for all the stories guys i dont feel so bad lol ill be looking for a rearend have to get the old girl on the road
 

gotyourgoat

Full Access Member
Joined
Mar 27, 2014
Posts
2,117
Reaction score
3,418
Location
NRV Virginia
First Name
gotyourgoat
Truck Year
1984
Truck Model
c10
Engine Size
smokin' 305
Oh, sorry. I couldn't quite weed out the details of the OP's purpose. I thought it was general mechanical nightmares, but if it's transmission issues you want....

The truck has had less than half as many engines as transmissions, actually maybe one third. And then there's the time the Gear Vendors unit fell out.
I dunno what's happening, it is in the transmission and transfer case forum. You have a mountain of failures though. And fell out? That's quality.
 

Blue Ox

Turning Diesel Fuel Into Fun
Joined
Mar 27, 2018
Posts
4,895
Reaction score
10,847
Location
LI-NY
First Name
Derek
Truck Year
MCMLXXXV
Truck Model
K20HD
Engine Size
6.2L
I dunno what's happening, it is in the transmission and transfer case forum. You have a mountain of failures though. And fell out? That's quality.

I probably should have seen that. I tend to go to the "Today's Posts" button and expect I'll figure it out from context.

So, are you ready for a novel?... o_O

As far as transmission horror stories go,...

Remember, we bought this truck new. The THM400 lost direct at around 30K miles. Naturally not covered by warranty in the good ol' days when 12 mo/12000 mi was standard. So we went to a transmission shop that we knew and they rebuilt it. 3rd gear failed again, and they went through the box again,... and it failed again,... and they fixed it again,... and it failed again. The final autopsy revealed that the hollow bolt that feeds oil to the center support and direct clutch had been fractured and it wasn't noticeable until it was torqued when the crack would spread and reduce pressure to the clutch pack. But at some point in the chain of repairs they threw their hands in the air and put a different transmission in it that held up okay.

Unfortunately it was probably a transmission out of a Caprice or similar, because it was a 2WD case and it had the wrong converter. It was never quite right, but not knowing any better we just drove it for another 100K or so miles. Then it started making weird ticking noises at part throttle. I changed the exhaust system, and believe it or not that solved a lot of the noises. Apparently some broken baffles in the mufflers, but there were still noises.

Now, knowing slightly better, I brought it to a local shop that did racing transmissions. They opened it up and found all kinds of kaka like the wrong converter, cracked non-brazed fins and many other issues. So they went to town and put in a fully welded convertor with the correct stator and did the heavy duty upgrades etc. When I drove it, it was like I remembered the truck when it was new. Plenty o' torque, acceleration, smooth firm shifts etc. It was expensive, like $3500 expensive but it was worth it to get it right.

1500 miles later it blew up, puking fluid everywhere. Bad pump, bushings failed and more love. And the worst part was the pri¢k wouldn't warranty it. I had done three transmissions with this POS but the one failure he blamed on the Gear Vendors "distorting the case". REALLY?!?! It had a 2WD case for 100K miles and it wasn't "distorted". I called Gear Vendors and they thought I had nine heads. No way, no how. The only relief I got from the pri¢k was he didn't charge the labor to R&R the transmission. I suspect the flywheel had been put on backwards, because the now-repaired transmission has tens of thousands of miles on it with the same overdrive and his R&R guy ended up seeking other employment shortly after. I also blame it on the fact that the @$$hole painted all his rebuilds Ford blue. I suspect the truck initially rejected it.

Which brings us to the Gear Vendors overdrive.

It was installed when the truck was fairly new. Because a 6.2L with 4:10s and a THM400 kind of howls at highway speeds. And I have a lot of positive things to say about the GV overdrive. We had previously had one in a 1980 Volvo wagon with a 2.4L diesel and it was really nice. So we took the plunge and put one in the pickup. It worked great. For close to 200K miles it knocked down the fuel consumption probably 7-8 MPG. Big benefit, worth the investment.

But there's a manufacturing flaw. Like most things British, Laycock (Yes, that's the actual manufacturer of the unit. I'm not making this up) has no finesse. And they cut the keyway for the pump drive with no radius on the corners. So there's a stress riser and after almost 200K miles the driveshaft fractured. So I go to leave from a stoplight, the fractured driveshaft broke and locked in the case. The engine torque started turning the case instead of the shaft. It sheared the eight 1/4 in mounting studs off the adapter and the entire 35 lb overdrive went on the street. Only held on by the solenoid wires and speedometer cable.

It had almost 200K miles on it, so I guess I shouldn't complain. I was able to use the 4WD to get the truck out of traffic and into a turning lane. And the police were nice enough to stand by until the tow truck got there. But it was altogether awkward to say the least.

So there you are. I'm not 100 % sure of the count, but seven or eight transmissions later,.. my horror stories.

Sorry for the Homer-esque epic.

And BTW, the truck is on it's third engine. So no numbers-matching $#it here.
 

78C10BigTen

Full Access Member
Joined
Apr 12, 2017
Posts
15,598
Reaction score
24,035
Location
pennsylvannia
First Name
Ted
Truck Year
1978
Truck Model
C10 BIG TEN
Engine Size
350
They say a picture is worth a thousand words, so here's my story. No punctuation required.

You must be registered for see images attach
Thats impressive!! And i thought breaking my cam in 4 pieces was bad! (Under normal drivin conditions i might add)
 
Last edited:

Latest posts

Forum statistics

Threads
42,156
Posts
910,233
Members
33,651
Latest member
di11ard
Top