drive line thump getting worse.
#1
drive line thump getting worse.
92' Ranger XLT with 2.9 V6.
I have the textbook clunk or thump when starting from a dead stop. It's getting worse and sometimes I get a second thump after the initial thump while accelerating.
I spent time looking at everything under the truck and I didn't see anything. I'm pretty sure the problem is in the area of drive shaft slip yoke/transfer case.
I have the 2-piece driveshaft.
The first I'll check is the slip yoke. I've done some reading. But I have a couple questions.
1. Do the slip yoke and driveshaft splines need lubricating on my make and model?
2. If I disconnect the driveshaft companion flange at the differential, can I then just pull the driveshaft away from the transfer case to expose the splines?
3. If I need a new slip yoke, I'm not able to determine which one I need. Do I just count splines and take measurements to select the one I need ?
I have the textbook clunk or thump when starting from a dead stop. It's getting worse and sometimes I get a second thump after the initial thump while accelerating.
I spent time looking at everything under the truck and I didn't see anything. I'm pretty sure the problem is in the area of drive shaft slip yoke/transfer case.
I have the 2-piece driveshaft.
The first I'll check is the slip yoke. I've done some reading. But I have a couple questions.
1. Do the slip yoke and driveshaft splines need lubricating on my make and model?
2. If I disconnect the driveshaft companion flange at the differential, can I then just pull the driveshaft away from the transfer case to expose the splines?
3. If I need a new slip yoke, I'm not able to determine which one I need. Do I just count splines and take measurements to select the one I need ?
#2
I've got an 01 4.0 4x4 with this situation. Upon acceleration from stop - thump, then just a second and - thump. It's not violent but I can definitely feel it. I've had it checked out by two shops, both told be "driveline backlash". I want to have it corrected if possible but sounds like it's nothing they wanted to mess with "just drive it".
Sorry i don't have an answer but I'll be watching this thread too see what answers arise...
Sorry i don't have an answer but I'll be watching this thread too see what answers arise...
#4
#5
I read the spline shaft in the slip yoke needs to be lubed with a specific, Ford grease. I got mine online for $14 where the nearest dealership wanted $45.
EDIT: As I recall, the Ford grease is a "Teflon grease" and is said to work better. I doubt it's life and death either way.
Some members here claim to use regular grease with good results. Others say common greases simply require redoing the job in a few years.
I have the one piece driveshaft but I think there's a slip yoke at its forward end which requires removal of a boot.
EDIT: As I recall, the Ford grease is a "Teflon grease" and is said to work better. I doubt it's life and death either way.
Some members here claim to use regular grease with good results. Others say common greases simply require redoing the job in a few years.
I have the one piece driveshaft but I think there's a slip yoke at its forward end which requires removal of a boot.
Last edited by Georgeandkira; 12-27-2023 at 11:08 AM.
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