Hey I am still getting Vibrations/grinding when i let off the gas on the highway at 60-70mph. I notice it only really happens on the Highway, I have changed my Center Support bearing out too see if that would help and i had also made sure my axle deferential has fluid in it. I am not sure what could be cause this, I took a buddy of mine on a ride and he could not figure it out either. I am trying to figure out what it could be, I notice it is coming from the rear for sure though. I pulled it in the shop at school sense i am in Automotive and I struggle to figure out what is causing this.

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97"Ford Ranger 2.3L

Mods: Headlights 8k HIDs, Green Fogs HIDs, FlowMaster 40 Series, Tails lights, Shaved Tail gate,Roll pan, 5/6 lowered, Ibeams, 2in coils, Flip kit, Honda Metallic Paint

DRIVE IT LIKE YOU STOLE IT

How much is it lowered? Your driveshaft could be out of balance itself or your pinon angle could be off causing a driveline vibration

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2007 F-150 SuperCrew Lariat
2003 Explorer front end swap, 7/8 drop, 2.3L 5 speed 4.10's LSD
2007 Yamaha Dragstar

I have this issue as well - from 0-50 km/h and again from +110

It levels out after 50km/h - could it be something else than the driveshaft, cause would that not me static all the time?

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No vibration in a driveline vary at different speeds and come and go they are not constant which is what can make them difficult to diagnose.



Also worn U - joints can cause a driveline vibration so check those first since it's the easiest to fix.

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2007 F-150 SuperCrew Lariat
2003 Explorer front end swap, 7/8 drop, 2.3L 5 speed 4.10's LSD
2007 Yamaha Dragstar

Ok so the u-joint is part of the front driveshaft right?

Pardon my ignorance

If you could link to the part i would appreciate it

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Every drive shaft has u-joints on both ends. Here's a video

https://www.youtube.com/watch?v=g76y...e_gdata_player

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2007 F-150 SuperCrew Lariat
2003 Explorer front end swap, 7/8 drop, 2.3L 5 speed 4.10's LSD
2007 Yamaha Dragstar

Roger thanks!

Whats the easiest way to diagnose if the u-joint i worn? I definately know it does not look new, that i remember.

Maybe i should just replace it and see it helps if part's not to expensive?

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imo, if there is any 'play' in the ujoint, then it needs to be replaced. kinda like ball joints lol

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1999 xlt 2.5l 5-speed Supercab 159k
83 diesel 2.2l na
06 F250 6.0l psd
{click for lol}

Ok will check and replace it if that's the case.

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X2

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2007 F-150 SuperCrew Lariat
2003 Explorer front end swap, 7/8 drop, 2.3L 5 speed 4.10's LSD
2007 Yamaha Dragstar

x3

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lol! ^.^

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1999 xlt 2.5l 5-speed Supercab 159k
83 diesel 2.2l na
06 F250 6.0l psd
{click for lol}

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