Rumbling when releasing clutch from start

[m78]

Saw dust in the rear differential. Filled up the slack in the gears. Thats what I heard.

 

[kiwi f150]

Checked my motor mounts tonight and the bolts were tight.

Hi Steven - does your truck have a two piece driveshaft - if it does there will be a centre bearing bolted to a chassis crossmember which you could check out - if its bad you should also be able to hear a rumbling sound while driving at a moderate speed.
I would continue back down the drivetrain checking the universal joints , shackle bushes, - anything that could be loose etc.

Cheers Mark

 

[wareagle]

Hi Steven - does your truck have a two piece driveshaft - if it does there will be a centre bearing bolted to a chassis crossmember which you could check out - if its bad you should also be able to hear a rumbling sound while driving at a moderate speed.
I would continue back down the drivetrain checking the universal joints , shackle bushes, - anything that could be loose etc.

Cheers Mark

Will check that out Mark. Thank you again to you and everyone for their advice.

 

[BKW]

D9TZ-4800-A .. Driveshaft Center Support Kit / Available from Ford.

Applications: 1961/79 F100/250 / 1975/79 F150 / Misc 1980/89 F100/250's.

Kit includes the bearing, U shaped rubber support and bracket, shims.

MSRP: $96.83 // PARTSGUYED.COM price: $69.72.

 

[wareagle]

D9TZ-4800-A .. Driveshaft Center Support Kit / Available from Ford.

Applications: 1961/79 F100/250 / 1975/79 F150 / Misc 1980/89 F100/250's.

Kit includes the bearing, U shaped rubber support and bracket, shims.

MSRP: $96.83 // PARTSGUYED.COM price: $69.72.

Thanks Bill.