I need the torque specs for the rear axle of my 96 ford ranger its the 7.5 inch ring gear the pinion bearings went outon it an i got a complete rebuild kit for it problem is no torque specs included i need the pinion an center carrier specs for it so i dont over or under torque them
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I believe your rear end uses a crush sleeve. You have to shim your pinion gear to the proper depth first, then you have to crush sleeve (impact gun helps), then measure the torque ( inch pounds I believe) it takes to rotate the pinion gear. If you don't have the right equipment to set up your rear end, take it to a shop.
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
I have a '68 Motor's manual (goes back to'58) the only rear end specs I can find are for the pinion nut (140 ft. lbs.)
pinion preload: 17-27 in. lbs. w/integral carrier or 22-32 in.lbs. w/ removable carrier. Tightening the carrier bearings isn't so much a torque setting but more or a tightening procedure. Theses specs are done during the rebuild so I wonder if you're asking about the bearing caps or bolts that hold the diff. to the axle housing? I could not find a spec. for bolt torque. Since the bolts that hold it in (if that is what you asking about) are not a bearing adjustment, you can go with a generic torque based on bolt size. Again, I'm not sure what component, or bolts it is you are asking for torque specs on.
The pinion nut does not have a torque spec. as in how tight the nut is. The amount of torque is measured in bearing preload. You will need a "torque to rotate" torque wrench. If you are using new bearings the torque spec. is 15-25 in. lbs. If you are using your old bearings the torque spec. is 10-20 in. lbs to rotate. To measure this you will need to tighten the nut in small increments then use the torque to rotate wrench to turn the pinion without the carrier/ ring gear installed. Repeat until desired torque is reached.
There is no torque specs,this nut has to be tightened back like it was ,the best thing to do,was,to late now,is to use a torque wrench to remove the nut,and remember the torque,and when replacing it,torque it back to that spec,the reason being,there is a crush sleeve between the front pion bearing ,and the rear pinion bearing,and it has to be crushed to a certain amount,to aquire deepness into the ring gear,anyway just give it about 25 lbs torque,any more the crush sleeve will crush even more and the deepness of the pinion will be too much.
Block the front tires. Break the rear lugs loose. Jack up the rear of the truck at the center if possible. remove the wheels & brake drums. Remove the brake shoes,return springs & all the other hardware. Remove the differential cover & drain oil. If you have a posi the next step sucks. You need to remove the threaded pin from the housing & remove the axle retaining clips. All the while,being carefull of the spring in the posi unit. If no posi,then same procedure,minus the "pucker factor". After the axle is out,take a large flat blade screw driver or pry bar & pop the seal out. Keep in mind the axle bearing is probably gone too , so that's another procedure. Keep it apart,you'll be glad you did.
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
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
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.
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) 2-Jaw Puller
205-D072 (D97L-4221-A) or equivalent Holding Fixture, Drive Pinion Flange
205-126 (T78P-4851-A) Installer, Drive Pinion Flange
205-002 (TOOL-4858-E) or equivalent
Raise and support the vehicle.
Remove the rear wheel and tire assemblies.
CAUTION: Remove the rear brake calipers to prevent drag during the drive pinion bearing preload adjustment. 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.
CAUTION: Index-mark the driveshaft flange and pinion flange (4851) to maintain initial balance during installation. 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.
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.
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.
Index-mark the pinion flange and drive pinion gear stem to maintain initial balance during installation.
Using the special tool, remove the pinion flange.
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.
Lubricate the pinion flange splines.
Use SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or equivalent meeting Ford specification WSP-M2C197-A.
NOTE: Disregard the index marks if installing a new pinion flange.
Position the pinion flange.
Using the special tools, install the pinion flange.
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. 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.
CAUTION: Align the index marks. 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. 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. .