Question about 1990 Ford F350

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What are the torque specs for the pinion nut and flange bolts on a 1990 ford f350 srw differential? Does anyone have diagrams or pics of how to remove and replace the pinion seal on the same model year truck?

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Most pinion nuts don't have a published torque spec. they are to be tightened until the pinion requires a specified torque to spin with the wheels and brake drums removed. Often times, when a rebuild is not performed, it should be torqued to the same preload as before the work. autozone.com has alot of good repair info and diagrams.

Posted on Nov 17, 2009

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What is the torque spec for a 1978 Ford pinto differential pinion nut?


170 ft.lbs is the minimum; be aware that this differential uses a crush sleeve to set the backlash and the pinion torque is what crushes the crush sleeve. If you don't set the backlash correctly you can grind up your differential gears.
8 Inch Ford Rear End Torque Specifications eHow

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Torque specs for 2008 ford ranger 4x2 front axle


Torque Specifications

Description Nm lb-ft Axle-to-frame bolt 66 49 Axle damper-to-frame bolt 34 25 Brake caliper guide pin bolt 33 24 Differential bearing cap bolt 61 45 Differential housing cover bolt 29 21 Ring gear bolt 122 90 Tie-rod nut 91 67 U-joint spider retainer bolt 19 14 Upper ball joint pinch bolt 48 35

Sep 18, 2014 | 2008 Ford Ranger 2WD

1 Answer

I am replacing the seal on the rear penion i need touqe specs on the nut


PINION FLANGE & OIL SEAL

CAUTION: Following procedure must be used to retain proper pinion bearing preload. Failure to follow procedure may result in premature axle assembly or component failure. Ensure pinion bearing preload is checked before disassembly, as previous pinion bearing preload will be used during reassembly.

Removal

1. Raise and support vehicle. Scribe reference mark on drive shaft-to-pinion flange on differential for reassembly reference. Remove bolts and "U" joint straps at pinion flange on differential.
Disconnect drive shaft from differential.
2. Remove rear wheels and brake drums to prevent any drag that may affect pinion bearing preload reading. Using INCH-lb. torque wrench, measure amount of force required to rotate pinion. This is pinion bearing preload. Record pinion bearing preload for reassembly reference.
3. Using Holder (6719), hold pinion flange. Remove pinion nut and washer. Scribe reference mark on pinion flange-to-pinion for reassembly reference. Using appropriate puller, remove pinion flange from pinion. Remove oil seal from axle housing.

Installation

1. Ensure oil seal surface in axle housing is clean. Coat lip of oil seal with gear lube. Install oil seal using appropriate seal installer. Drive oil seal into axle housing until oil seal installer contacts axle housing.
2. Install pinion flange on pinion with reference mark aligned. Using appropriate pinion flange installer, install pinion flange on pinion.

CAUTION: Washer must be installed on pinion with convex side of washer facing outward (away from pinion).

3. Install washer on pinion with convex side of washer facing outward (away from pinion). Install NEW pinion nut. Tighten pinion nut to 210 ft. lbs. (285 N.m). Rotate pinion several times to seat pinion bearings.

CAUTION: DO NOT overtighten or loosen then retighten pinion nut when adjusting pinion bearing preload. If pinion nut is overtightened, collapsible spacer on pinion must be replaced.

4. Rotate pinion using INCH-lb. torque wrench. Rotating torque should be equal to reading recorded in removal step 2) , plus 5 INCH lbs. (.056 N.m). If rotating torque is low, tighten pinion nut in small increments until proper rotating torque is obtained.
5. To install remaining components, reverse removal procedure using NEW "U" joint straps and bolts. Ensure all reference marks are aligned. Tighten bolts to specification. Check lubricant level and add if necessary.




Jan 23, 2010 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

Torque Specifications


1. If you are speaking of the large yoke nut there is no "torque spec" per say, instead it is a rotational preload-

From Ford manual:
Use the special tool to hold the pinion flange while tightening the nut to set the preload.
  • Tighten the nut, rotating the pinion occasionally to ensure the differential pinion bearings are seating correctly. Take frequent differential pinion bearing preload readings by rotating the pinion with a Nm (inch-pound) torque wrench. The final reading must be 0.56 Nm (5 lb-in) more than the initial reading taken during removal.
2. If you are looking for the yoke straps that hold the universal in place to the yoke it is 14ft lb for the 4 bolts.

May 28, 2009 | 2004 Ford Ranger

1 Answer

Rear differential on a 2004 Mustang gt leaking fluid


this is for 2003 7.5 inch ring gear axle. SECTION 205-02A: Rear Drive Axle/Differential — Ford 7.5-Inch Ring Gear 2003 Mustang Workshop Manual IN-VEHICLE REPAIR Drive Pinion Flange and Drive Pinion Seal Special Tool(s) s3b%7eus%7een%7efile=st2026a.gif%7egen%7eref.gif2-Jaw Puller 205-D072 (D97L-4221-A) or equivalent s3b%7eus%7een%7efile=st1257a.gif%7egen%7eref.gifHolding Fixture, Drive Pinion Flange 205-126 (T78P-4851-A) s3b%7eus%7een%7efile=st1862a.gif%7egen%7eref.gifInstaller, Drive Pinion Flange 205-002 (TOOL-4858-E) or equivalent Removal
  1. Raise and support the vehicle.
  1. Remove the rear wheel and tire assemblies.
  1. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Remove the rear brake calipers to prevent drag during the drive pinion bearing preload adjustment. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Do not allow the calipers to hang from the brake hoses. Remove the rear brake caliper and support bracket from the knuckle as an assembly. Wire the caliper and support bracket assembly out of the way.
  2. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Index-mark the driveshaft flange and pinion flange (4851) to maintain initial balance during installation. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: The driveshaft centering socket yoke fits tightly on the pinion flange pilot. Never hammer on the driveshaft or any of its components to disconnect the yoke from the flange. Pry only in the area shown, with a suitable tool, to disconnect the yoke from the flange. Disconnect and position the driveshaft out of the way.
  1. Install an Nm (inch/pound) torque wrench on the nut and record the torque necessary to maintain rotation of the drive pinion gear through several revolutions.
  1. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: After removing the nut, discard it. Use a new nut for installation. Use the special tool to hold the pinion flange while removing the nut.
  1. Index-mark the pinion flange and drive pinion gear stem to maintain initial balance during installation.
  1. Using the special tool, remove the pinion flange.
Installation
  1. Inspect the pinion flange seal journal for rust, nicks, and scratches prior to installing the flange. Polish the seal journal with fine crocus cloth, if necessary.
  1. Lubricate the pinion flange splines.
    • Use SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or equivalent meeting Ford specification WSP-M2C197-A.
  1. NOTE: Disregard the index marks if installing a new pinion flange. Position the pinion flange.
  1. Using the special tools, install the pinion flange.
  1. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Do not under any circumstance loosen the nut to reduce preload. If it is necessary to reduce preload, install a new collapsible spacer (4662) and nut. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Remove the special tool while taking preload readings with the Nm (inch/pound) torque wrench. Tighten the nut to set the preload.
    • Rotate the drive pinion occasionally to make sure the differential pinion bearings (4630) (4621) seat correctly. Take frequent differential pinion bearing torque preload readings by rotating the drive pinion with a Nm (inch/pound) torque wrench.
    • If the preload recorded prior to disassembly is lower than the specification for used bearings, then tighten the nut to specification. If the preload recorded prior to disassembly is higher than the specification for used bearings, then tighten the nut to the original reading as recorded.
    • Refer to the torque specification for used differential pinion bearings in the Specifications portion of this section.
  1. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Align the index marks. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: Install the driveshaft with new bolts. If new bolts are not available, apply Threadlock and Sealer EOAZ-19554-AA or equivalent meeting Ford specification WSK-M2G351-A5 to the threads of the original bolts. s3b%7eus%7een%7efile=ani_caut.gif%7egen%7eref.gif CAUTION: The driveshaft centering socket yoke fits tightly on the pinion flange pilot. To make sure that the yoke seats squarely on the flange, tighten the bolts evenly in a cross pattern as shown. Connect the driveshaft. .
  1. Install the rear brake calipers.
  1. Install the rear wheel and tire assemblies.
  1. Lower the vehicle.

May 26, 2009 | 2004 Ford Mustang

2 Answers

I cant get the axle out of the front diff what is holding it in 2001 dodge durango


here is a diagram on how to get the front pinion seal out and it does mention how to get the axle loose. please do not forget to rate and comment about your experience with fixya today.
  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2. Remove both half shafts.
  3. Mark propeller shaft and pinion flange for installation reference.
  4. Remove front propeller shaft.
  5. Rotate pinion gear three to four times, to verify pinion rotates smoothly.
  6. Record pinion flange rotating torque with an inch pound torque wrench for installation reference.
  7. Hold flange with Holder 6719 and four bolts and washers.
  8. Remove pinion nut.
  9. Remove flange with Remover C-452.
  10. Remove pinion seal with a pry tool.
    67189-dako-g28.gif Removing the companion flange
    67189-dako-g25.gif Measuring pinion rotating torque
    67189-dako-g27.gif Pinion seal installer
    67189-dako-g26.gif Tightening the pinion nut
To install:
  1. Apply a light coating of gear lubricant on the lip of pinion seal.
  2. Install seal with Installer C-3972-A and Handle C-4171.
  3. Install pinion flange onto the pinion with Installer C-3718 and holder.
  4. Hold pinion flange with Holder 6719A.
  5. Install new pinion nut and tighten nut until there is zero bearing end-play.

    CAUTION Do not exceed the minimum tightening torque when installing the companion flange at this point. Damage to the collapsible spacer or bearings may result.
  6. Tighten pinion nut to 271 Nm (200 ft. lbs.).

    CAUTION Never loosen pinion nut to decrease pinion bearing rotating torque and never exceed specified preload torque. If preload torque or rotating torque is exceeded a new collapsible spacer must be installed.
  7. Record pinion flange rotating torque, with a torque wrench. Rotating torque should be equal to the reading recorded during removal plus an additional 0.56 Nm (5 inch lbs.).
  8. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. lbs.) increments until rotating torque is achieved.

    CAUTION If maximum tightening torque is reached prior to reaching the required rotating torque, the collapsible spacer may have been damaged. Replace the collapsible spacer.
  9. Install propeller shaft with reference marks aligned.
  10. Install half shafts.

Apr 16, 2009 | 2001 Dodge Durango

1 Answer

The seal on the front axle on the passenger side is leaking.is it hard to replace myself.


here is a diagram on how to replace the front pinion seal.
please do not forget to rate and comment about your experience with fixya.

  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2. Remove both half shafts.
  3. Mark propeller shaft and pinion flange for installation reference.
  4. Remove front propeller shaft.
  5. Rotate pinion gear three to four times, to verify pinion rotates smoothly.
  6. Record pinion flange rotating torque with an inch pound torque wrench for installation reference.
  7. Hold flange with Holder 6719 and four bolts and washers.
  8. Remove pinion nut.
  9. Remove flange with Remover C-452.
  10. Remove pinion seal with a pry tool.
    67189-dako-g28.gif Removing the companion flange
    67189-dako-g25.gif Measuring pinion rotating torque
    67189-dako-g27.gif Pinion seal installer
    67189-dako-g26.gif Tightening the pinion nut
To install:
  1. Apply a light coating of gear lubricant on the lip of pinion seal.
  2. Install seal with Installer C-3972-A and Handle C-4171.
  3. Install pinion flange onto the pinion with Installer C-3718 and holder.
  4. Hold pinion flange with Holder 6719A.
  5. Install new pinion nut and tighten nut until there is zero bearing end-play.

    CAUTION Do not exceed the minimum tightening torque when installing the companion flange at this point. Damage to the collapsible spacer or bearings may result.
  6. Tighten pinion nut to 271 Nm (200 ft. lbs.).

    CAUTION Never loosen pinion nut to decrease pinion bearing rotating torque and never exceed specified preload torque. If preload torque or rotating torque is exceeded a new collapsible spacer must be installed.
  7. Record pinion flange rotating torque, with a torque wrench. Rotating torque should be equal to the reading recorded during removal plus an additional 0.56 Nm (5 inch lbs.).
  8. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. lbs.) increments until rotating torque is achieved.

    CAUTION If maximum tightening torque is reached prior to reaching the required rotating torque, the collapsible spacer may have been damaged. Replace the collapsible spacer.
  9. Install propeller shaft with reference marks aligned.
  10. Install half shafts.

Apr 12, 2009 | 2001 Dodge Durango

1 Answer

Ford pinion seal


remove the drive shaft at the pinion flange move it out of the way, then remove the pinion flange on the differential nose, the seal is under that, replace the seal and repalce the pinion flange nut, torque to 50 foot pounds and stake the nut like the old one, this is bending the lip of the nut over to lock it in place.

Mar 27, 2009 | 1990 Ford Ranger SuperCab

1 Answer

I need the torque for rear pinion on f350


depends on rear axle you have
Dana 80 pinion nut torque is 470 ft lb pionion brg pre load is 25-45 in lb
Dana S110 pinion nut torque is 832 ft lb pinion brg pre load is 20-40 in lb
Dana S135 pioion nut is 800 ft lb and pinion brg pre load is 10-40 in lb

Mar 20, 2009 | 2004 Ford F350

1 Answer

Torque specs 7.5 inch rear axle 96 ford ranger


Differential bearing caps 70-85 ft lb
Ring gear bolts 70-85 ft lb
Pinion bearing preload if using original bearings 8-14 lb-in, if installing new bearings 16-28 lb-in

Jan 30, 2009 | 1996 Ford Ranger SuperCab

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