2003 F150 4x4 Drive shaft (rear)
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08-15-2008, 03:53 PM
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#3
08-15-2008, 09:32 PM
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Dry or greased
I should have been more spacific. My out put shaft and inner yok is dry, should it have some kind of lubricant on it????
#4
08-16-2008, 08:58 AM
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Isn't that the slip yoke that's got a TSB about it causing a "clunk", or am I misunderstanding? That problem is supposed to be solved by using some grease on the splines.
That said, I've always used a light coating of lithium grease on slip yokes. Same stuff that I use in suspension parts and u-joints.
That said, I've always used a light coating of lithium grease on slip yokes. Same stuff that I use in suspension parts and u-joints.
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FORD: 1998-2004 F-150
ISSUE:
Some 1998-2004 F-150 4X4 vehicles with a one piece drive shaft may exhibit a clunking or grunting noise and/or a shudder sensation from the driveline. The condition will typically occur during light to moderate acceleration from a stop and/or braking. This may be caused by the slip yoke not sliding smoothly on the transfer case output shaft splines.
ACTION:
To service, lubricate the slip yoke with Teflon Grease (D2AZ-19590-A). Refer to the following Service Procedure.
SERVICE PROCEDURE
Road test the vehicle to verify the condition.
Remove the driveshaft per Section 205-01 of the Workshop Manual.
NOTE: INDEX (MARK) THE DRIVESHAFT YOKE TO AXLE FLANGE FOR REASSEMBLY.
Lubricate the slip yoke with 7-13 grams (0.25-0.46 oz.) of Teflon Grease (D2AZ-19590-A).
Re-index and reinstall the driveshaft per Workshop Manual.
Check the transfer case fluid level and add MERCON Automatic Transmission Fluid XT-2-QDX if necessary.
Road test to verify the condition is corrected.
PART NUMBER PART NAME
D2AZ-19590-A Teflon Grease
OTHER APPLICABLE ARTICLES:
NONE
WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
OPERATION DESCRIPTION TIME
040106A Lubricate The Slip Yoke With Teflon Grease Vehicles With One-Piece Driveshaft (Includes Time To Remove And Install Driveshaft) 1.0 Hr.
FORD: 1998-2004 F-150
ISSUE:
Some 1998-2004 F-150 4X4 vehicles with a one piece drive shaft may exhibit a clunking or grunting noise and/or a shudder sensation from the driveline. The condition will typically occur during light to moderate acceleration from a stop and/or braking. This may be caused by the slip yoke not sliding smoothly on the transfer case output shaft splines.
ACTION:
To service, lubricate the slip yoke with Teflon Grease (D2AZ-19590-A). Refer to the following Service Procedure.
SERVICE PROCEDURE
Road test the vehicle to verify the condition.
Remove the driveshaft per Section 205-01 of the Workshop Manual.
NOTE: INDEX (MARK) THE DRIVESHAFT YOKE TO AXLE FLANGE FOR REASSEMBLY.
Lubricate the slip yoke with 7-13 grams (0.25-0.46 oz.) of Teflon Grease (D2AZ-19590-A).
Re-index and reinstall the driveshaft per Workshop Manual.
Check the transfer case fluid level and add MERCON Automatic Transmission Fluid XT-2-QDX if necessary.
Road test to verify the condition is corrected.
PART NUMBER PART NAME
D2AZ-19590-A Teflon Grease
OTHER APPLICABLE ARTICLES:
NONE
WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
OPERATION DESCRIPTION TIME
040106A Lubricate The Slip Yoke With Teflon Grease Vehicles With One-Piece Driveshaft (Includes Time To Remove And Install Driveshaft) 1.0 Hr.
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08-16-2008, 09:04 AM
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#8
08-16-2008, 06:05 PM
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Yep, the TSB I quoted in my post has the part number for that grease.
I've been using the same chassis grease on slip-joints on all of my vehicles since I started wrenching on them...that's what I used on my 97 too since I hadn't even heard of that TSB until I was reading some posts on the net when digging up info for my dead tranny a little while back. That has worked for me for years (and I'll probably keep using the same since I've always got it in the shop). Just put that in as what I've used...any grease is better than a dry joint.
But since Ford has a part number listed above then their recommended grease is probably the best to use.
I've been using the same chassis grease on slip-joints on all of my vehicles since I started wrenching on them...that's what I used on my 97 too since I hadn't even heard of that TSB until I was reading some posts on the net when digging up info for my dead tranny a little while back. That has worked for me for years (and I'll probably keep using the same since I've always got it in the shop). Just put that in as what I've used...any grease is better than a dry joint.
But since Ford has a part number listed above then their recommended grease is probably the best to use.
#9
08-16-2008, 06:13 PM
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Normally, the rear output shaft on the transfer case is above the fluid level inside it...that's why the 4x4s suffer from that dry joint clunking. You won't lose any fluid out of the TC when you drop the driveshaft.
A 2wd, with the slip-yoke going right into the tranny, will get some lubrication at that joint from the tranny fluid but on most 4x4 transfer cases the fluid level is nowhere near the output shaft location so they can run dry if you don't grease em. Personally, I don't have faith in ATF being a good enough lubricant for the slipyoke...I grease the splines on my 2wds too.
Last edited by Bindernut; 08-16-2008 at 06:17 PM.
#10
08-22-2008, 03:58 AM
The oil level is just below the lip to allow the slip yoke to soak in oil to lube the bushing that it slides in. If it was dry the bushing would score the slip yoke. The seal on my t-case is loose and leaks so when I pull the slip yoke out of the t-case oil drips. I cannot remember it it ever did that when it was new.
Regards
Jean Marc Chartier
Regards
Jean Marc Chartier