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ase_master327
ase_master327, Shop Owner
Category: Chevy
Satisfied Customers: 5288
Experience:  +15 years experience with Chevrolet. Bumper to bumper diagnosis & repair.
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will a 1997 suburban rear end housing fit into a 1996 tahoe

Resolved Question:

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Submitted: 6 years ago.
Category: Chevy
Expert:  ase_master327 replied 6 years ago.
Yes, they are the same...as long as it not 4X4.

Need some instructions?
Customer: replied 6 years ago.
what do mean as long as it isnt 4x4?
Customer: replied 6 years ago.
Reply to ase_master327's Post: the gearing is the same but the only difference i can tell is the suburban runs bigger brakes on the rear. so it wont work if they are both 4x4?
Expert:  ase_master327 replied 6 years ago.
4X4 trucks have different ratios. If you put a slower rear end that is on the front of a 4X4 truck, you will be having problems (when you useXXXXX....getting stuck, breaking parts, etc...

You will need to make sure the ratios are the same, if this is the case, because of that.

The best way to chck the gear ratio is to mark the drum and the backing plate, and turn the pinoin 10 times while counting the revolutions of the tire. They should be the same.

If your truck isn't 4X4 though, it won't matter.
Customer: replied 6 years ago.
Reply to ase_master327's Post: the gearing is the same. but i was told that the pitch in the burban rear end is different form the tahoe. plus can i use the same backing plates from my original housing?
Expert:  ase_master327 replied 6 years ago.
It's the same, then...bolt it up.

They are the same truck, anyways.
Customer: replied 6 years ago.
Reply to ase_master327's Post: can u send instuctions?
Expert:  ase_master327 replied 6 years ago.

Here is a pic of it:

And here are the instructions:

  1. Raise and support the rear of the vehicle safely using jackstands under the frame. Position a floor jack or a second set of jackstands to support the rear axle housing. If a floor jack is being used, take care when removing the U-bolts to keep the axle from suddenly dislodging.

  2. Remove the rear wheels and drums for clearance and to remove some weight from the axle housing.

  3. If equipped, remove the axle vibration dampener.

  4. Matchmark and remove the rear driveshaft from the pinion flange. Either remove the shaft completely from the vehicle or support it aside from the undercarriage using safety wire, but DO NOT allow the shaft to hang from the slip joint.

  5. Remove the shock absorber-to-axle housing retainers, then swing the shock absorbers away from the axle housing.

  6. Disconnect the brake lines from the axle housing clips and the backing plates (wheel cylinders).

When disconnecting the brake lines from the wheel cylinders, immediately plug or cap the lines to prevent system contamination or excessive fluid loss.

  1. If applicable, unplug the speed sensor connectors at the junction block.

  2. Disconnect the parking brake cable(s).

  3. Disconnect the axle housing-to-spring U-bolt nuts, washers. U-bolts and the anchor plates.

  4. Remove the vent hose from the top of the axle housing.

  5. Remove the axle with the help of an assistant by moving it to clear the leaf spring, or if desired, the leaf springs can be disconnected from the frame at the rear end to lower the axle down and back, but first refer to the leaf spring procedures for information regarding spring installation and removal.

To install:

  1. With the help of an assistant, carefully position the rear axle into the vehicle.

  2. Connect the vent hose to the axle housing.

  3. Be sure the housing is properly positioned on the leaf spring, then loosely install the U-bolts, anchor plates, washers and nuts.

  4. Tighten the U-bolt nuts in a cross pattern to 18 ft. lbs. (25 Nm) to made sure everything is evenly seated. Then tighten the nuts in steps to 41 ft. lbs. (55 Nm) on 1994-95 models and 74 ft. lbs. (100 Nm) on 1996-99 models.

  5. Remove the caps from the brakes lines then connect the lines and secure them to the axle housing.

  6. If removed, connect the parking brake cable(s).

  7. If applicable, attach the speed sensor connectors to the junction block.

  8. Align and install the driveshaft assembly. Refer to the procedure earlier in this section for details.

  9. Install the shock absorbers to the lower mounts, then tighten the mount nuts.

  10. If equipped, install the axle vibration dampener.

  11. Install the brake drums and the tire/wheel assemblies.

  12. Properly refill the brake master cylinder and bleed the hydraulic brake system.

  13. Check the fluid level in the rear axle assembly and add, as necessary. Make sure the vehicle is level when checking and adding fluid.

  14. Remove the jackstands and carefully lower the truck.

Customer: replied 6 years ago.
Reply to ase_master327's Post: is it goin to hurt it if the backing plates on the burban are bigger than the originals that are on my tahoe, or will the original backing plates with the brakes fit on the new rear end?
Expert:  ase_master327 replied 6 years ago.

The backing plate will determine which drum goes on it.

The bigger one probably goes over the whole drum, while the smaller one rides in a lip in the drum.

So to keep the confusion down in the future, I would change the backing plates out, but this measn pulling the axles. They easy, just putt the differential cover off, and push the axle in, remove the clip, and pull the axle out...

Customer: replied 6 years ago.
Reply to ase_master327's Post: which one would you prefer the oringinal tahoe backing plate or the bigger suburban plates?
Expert:  ase_master327 replied 6 years ago.

With brakes, bigger is better.

By matching part numbers, and your description.. As long as the Suburban doesn't have a diesel engine, when you buy brakes for the new rear end, you can tell them its the 11 inch shoes instead of the 10 inch, they are also 1/4" wider.

So AS LONG as it's a gas motor on the Suburban, you have a legitimate upgrade for the Tahoe

If it is a diesel engine in the Suburban, they use different size brakes altogether, and you will have to remember the information from the suburban, when it time to change brakes.

ase_master327, Shop Owner
Category: Chevy
Satisfied Customers: 5288
Experience: +15 years experience with Chevrolet. Bumper to bumper diagnosis & repair.
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ase_master327
ase_master327
Chevy Mechanic
5288 Satisfied Customers
+15 years experience with Chevrolet. Bumper to bumper diagnosis & repair.