Differential Carrier Shims Buying Guide — Cheap OEM Replacement Parts for Sale | REVXSC
Looking for cheap differential carrier shims that won't fail in 6 months? Whether you're chasing ford 8.8 carrier shim kit assortment, how to set backlash with carrier shims, dana 44 carrier shim measurements, differential carrier shim too thick, ring and pinion backlash adjustment shims, this guide covers what to buy, what to skip, and how to make sure the part you order actually fits your truck or car. Every differential carrier shim sold at REVXSC ships with a verified year/make/model/engine fitment table — no guessing.
What differential carrier shims actually do
In one sentence: the precision metal shims placed behind the carrier bearing races to set carrier bearing preload and ring gear backlash. When they wear out, you'll typically feel it before you see it — your car starts telling you something is wrong, and ignoring it gets expensive.
Signs you need new differential carrier shims
- incorrect ring and pinion backlash after rebuild
- differential howl from improper preload
- ring gear contact pattern off-center
- carrier bearings running hot or noisy
- shims missing or damaged during disassembly
If you tick more than one box, replace before it leaves you on the side of the road. The repair gets a lot cheaper when you catch it early.
Also known as
Depending on the shop manual, region, or supplier you're reading, differential carrier shims are also called: carrier shim pack, side shim, preload shim, differential shim kit, case shim. They all refer to the same component — when you're cross-referencing OEM and aftermarket part numbers, watch for these naming variations so you don't double-order the same item.
How much should you pay?
Online direct-ship from REVXSC undercuts dealer parts counters significantly. We carry quality replacement differential carrier shims from Dana, Motive Gear, USA Standard Gear, Yukon Gear, Ratech, Richmond, Timken, Auburn Gear — every listing shows the price, the fitment chart, and real product photos. No mystery part numbers.
Featured differential carrier shims in stock right now
Shop all Differential Carrier Shims →
OEM vs aftermarket: which to choose
For differential carrier shims, the brand actually matters. Dana and Motive Gear supply major automakers as OEM suppliers — when you buy their boxed retail product, you're getting the same engineering and tolerances. Choose a full shim pack assortment for setup flexibility, individual case-half shims for known specs, or selective shim kits in 0.005 increments for precise backlash and preload adjustment..
Install: DIY or shop?
Difficulty: advanced. Bay time runs about 60–180 minutes with the right tools. Lifespan you should expect: Lasts the life of the differential — one-time setup during rebuild.
How REVXSC keeps prices low
Every listing includes a year/make/model/engine table.
ACDelco, Bosch, Dorman, Dayco, FEL-PRO and more.
Ships from US warehouses with real tracking.
No knockoff boxes, no rebranded junk.
Differential Carrier Shims shipping to every US state
REVXSC ships differential carrier shims same-day from US fulfillment to every state. Whether you're chasing salt-corroded differential carrier shims in the Midwest, heat-fatigued parts in the Southwest, or just need a fast OEM-grade replacement, every order ships from the US with tracking. We deliver to:
Common questions Americans ask about differential carrier shims
What does a carrier shim do in a differential?
Carrier shims sit behind the carrier bearing races and set both the carrier bearing preload and the backlash between the ring gear and pinion. Correct shim thickness is critical to getting a quiet, long-lasting differential.
How much do differential carrier shims cost?
Individual shims cost $3-$8 each from Yukon, Ratech, or USA Standard Gear. A full shim assortment kit runs $25-$80 and includes multiple thicknesses for precise setup. They are cheap insurance during a rebuild.
How do I know what carrier shim thickness I need?
Use a dial indicator on the ring gear to measure backlash and adjust by moving shims from one side to the other. Most specs call for 0.005-0.010 inch of backlash. Always verify with a gear marking compound pattern.
Can I reuse the original carrier shims?
Sometimes, but it is risky. Even slight bearing wear changes preload requirements. The smart move is to keep the originals as a baseline and have an assortment of shims handy to fine-tune backlash during reassembly.
What happens if the carrier shims are wrong?
Too thick crushes the bearings and creates a howl. Too thin lets the carrier walk and chews up the gears. Either way you get noise, premature failure, and likely metal shavings throughout the differential.
How thick are differential carrier shims?
Most range from 0.005 to 0.060 inch, typically in 0.002 to 0.005 inch increments for fine adjustment. A full shim kit gives you the range needed to handle most rebuilds without ordering more.
Do solid spacers replace shims?
Some performance setups use solid spacers with selective fit, but most factory and aftermarket carriers still use shim packs because they are infinitely adjustable to compensate for bearing and ring gear tolerances.
Can I install carrier shims myself?
Yes if you have a dial indicator, gear marking compound, and patience. Setting backlash by shim transfer is tedious but straightforward. Verify the contact pattern on the drive and coast sides before final torque.
Are differential carrier shims interchangeable between axles?
No. Shim outside diameter must match the bearing race seat in the differential housing. Ford 8.8 shims will not fit a Dana 44. Always order shims specific to your axle model.
Top US searches for differential carrier shims
Most-searched phrases from American shoppers comparing differential carrier shims this year — all of these are served by what REVXSC stocks:
This guide is updated as our differential carrier shims inventory and fitment data change. Last reviewed 2026-06-28.