more problems with the 78 f150 - Pirate4x4.Com : 4x4 and Off-Road Forum

NetBSD · 10-04-2006, 06:30 PM

i was driving it the other day and going down the road i started to hear a grinding noise, seems to come in when i hold it at a steady speed above 40mph, at first i thoght it was in the motor but i tossed it in nutral and it was still grinding.

things ive checked...

wheels bearings.
hubs.
tranny/t-case fluids.
u-joints.
ring gear/pinion.

nothing had metal shavings, all fluid levels were fine and clean. what the hell am i missing, the truck has no front d-shaft at the moment so i cant check if it does it in 4x4

VerticalTRX · 10-04-2006, 07:54 PM

Brakes....

I was having a bad grinding noise from the front of my '79, turned out the caliper had partially stuck. This caused the brake pad to wear away and it was grinding the brake pad backing into the rotor. Same this can happen on the rear (although less likely), so check both.

bjb · 10-04-2006, 08:36 PM

You need to narrow it down alot. Is it in the front/rear/left/right???? Jack it up and start spinning/shacking stuff

NetBSD · 10-04-2006, 10:04 PM

its not the brakes, i would have noticed that when i had the hubs apart, and i cant narrow it down, i have checked over and over and cant find out where its from, but if i was to guess its coming somewhere from the right side of the truck but i have a hard time hearing exactly where its coming from.

YamanX · 10-05-2006, 07:14 AM

Wheels aren't rubbing anywhere? Nothing hanging down touching the tires. Anything in the knuckles, left a screw driving in there? I've left one in the knuckle get the hubs back together, just missed it, bent it all to hell, but didn't break anything, it made an aweful noise.

NetBSD · 10-05-2006, 01:56 PM

theres nothing handing down, nothing inside the knuckles, im taking it for another ride today to go pickup my 300 I6 so i guess ill try to keep the rpm's down so i can hear it

Jmudder79 · 10-07-2006, 04:50 AM

If you can't narrow down where it is coming from try having someone else drive next to you and look and listen. Maybe they can pinpoint the noise for you.

NetBSD · 10-07-2006, 11:58 AM

no changes, still cant find out wheres its coming from

10-04-2006, 06:30 PM	#1 (permalink)
NetBSD Registered User Join Date: Jul 2005 Member # 50360 Location: Mount Carmel, PA. Posts: 1,636	more problems with the 78 f150 i was driving it the other day and going down the road i started to hear a grinding noise, seems to come in when i hold it at a steady speed above 40mph, at first i thoght it was in the motor but i tossed it in nutral and it was still grinding. things ive checked... wheels bearings. hubs. tranny/t-case fluids. u-joints. ring gear/pinion. nothing had metal shavings, all fluid levels were fine and clean. what the hell am i missing, the truck has no front d-shaft at the moment so i cant check if it does it in 4x4 __________________ 89 Ranger, 2.9, 6" lift, 35" baja claws 92 Silverado, 6.2L, GM-3 Turbo at 10PSI Last edited by NetBSD; 10-04-2006 at 06:31 PM.

10-04-2006, 07:54 PM	#2 (permalink)
VerticalTRX Registered User Join Date: Jun 2005 Member # 48716 Location: Virginia Posts: 989	Brakes.... I was having a bad grinding noise from the front of my '79, turned out the caliper had partially stuck. This caused the brake pad to wear away and it was grinding the brake pad backing into the rotor. Same this can happen on the rear (although less likely), so check both. __________________ Kickin' it old school: '79 Ford, Q78 TSLs and a Q-jet

10-04-2006, 10:04 PM	#4 (permalink)
NetBSD Registered User Join Date: Jul 2005 Member # 50360 Location: Mount Carmel, PA. Posts: 1,636	its not the brakes, i would have noticed that when i had the hubs apart, and i cant narrow it down, i have checked over and over and cant find out where its from, but if i was to guess its coming somewhere from the right side of the truck but i have a hard time hearing exactly where its coming from. __________________ 89 Ranger, 2.9, 6" lift, 35" baja claws 92 Silverado, 6.2L, GM-3 Turbo at 10PSI

10-05-2006, 07:14 AM	#5 (permalink)
YamanX Registered User Join Date: Apr 2006 Member # 70604 Location: Broken Arrow, OK Posts: 284	Wheels aren't rubbing anywhere? Nothing hanging down touching the tires. Anything in the knuckles, left a screw driving in there? I've left one in the knuckle get the hubs back together, just missed it, bent it all to hell, but didn't break anything, it made an aweful noise. __________________ It's not the size of the dog in the fight, it's the size of the fight in the dog that matters.

10-05-2006, 01:56 PM	#6 (permalink)
NetBSD Registered User Join Date: Jul 2005 Member # 50360 Location: Mount Carmel, PA. Posts: 1,636	theres nothing handing down, nothing inside the knuckles, im taking it for another ride today to go pickup my 300 I6 so i guess ill try to keep the rpm's down so i can hear it __________________ 89 Ranger, 2.9, 6" lift, 35" baja claws 92 Silverado, 6.2L, GM-3 Turbo at 10PSI

10-04-2006, 08:36 PM	#3 (permalink)
bjb Registered User Join Date: Nov 2005 Member # 56602 Location: Sacramento/Elk Grove/Sloughouse Posts: 983	You need to narrow it down alot. Is it in the front/rear/left/right???? Jack it up and start spinning/shacking stuff

10-07-2006, 04:50 AM	#7 (permalink)
Jmudder79 Registered User Join Date: Oct 2006 Member # 80273 Location: New Gretna,NJ Posts: 63	If you can't narrow down where it is coming from try having someone else drive next to you and look and listen. Maybe they can pinpoint the noise for you. __________________ You might be a redneck if you spent more on your truck then your education

10-07-2006, 11:58 AM	#8 (permalink)
NetBSD Registered User Join Date: Jul 2005 Member # 50360 Location: Mount Carmel, PA. Posts: 1,636	no changes, still cant find out wheres its coming from __________________ 89 Ranger, 2.9, 6" lift, 35" baja claws 92 Silverado, 6.2L, GM-3 Turbo at 10PSI

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