PowerTrax No-Slip Ford 9" Differential Locker 31 Spline -Fits Open Differential | Compatible for Ford, Lincoln, Mercury | Replaces Eaton 187SL17B, Auburn Gear 542036 | Heavy-Duty Performance

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powertrax no-slip ford 934 differential locker 31 spline -fits open differential compatible for ford lincoln mercury replaces eaton 187sl17b auburn gear 542036 heavy-duty performance

$ 480.72

Last price was updated on: 18th Dec 2025, 04:00 PM

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Pricing Analytics & Buying Assistance

Price Score: Good

Poor Average Good Excellent

Current Price $480.72

$257.46

Lowest

$697.36

Highest

Buying Advice:
Good – Worth buying.

Price History Benchmarks

Lowest Ever

$257.46

6th Aug 2020

Highest Ever

$697.36

29th Feb 2024

Average Price

$483.69

817 data points

Last 3M Low

$480.72

19th Nov 2025

Last 6M Low

$480.72

19th Nov 2025

Last 12M Low

$427.16

21st Dec 2024

Price History Chart

Product Variants

Image of PowerTrax 9204302700 No-Slip Differential Locker, 27 Spline, Fits Dana 30, Open Differential, Compatible with Jeep Wrangler, Cherokee, Grand Cherokee, ford Bronco

$271.63

PowerTrax 9204302700 No-Slip Differential Locker, 27 Spline, Fits Dana 30, Open Differential, Compatible with Jeep Wrangler, Cherokee, Grand Cherokee, ford Bronco

Image of PowerTrax 9207053000 No-Slip Differential Locker, 30-Spline Fit for GM 10.5" (14 Bolt) Open Differential w/Full-Floating Axle | Replaces Eaton 19610-1, 19689-1, PowerTrax 1955-LR, GT231430

$380.66

PowerTrax 9207053000 No-Slip Differential Locker, 30-Spline Fit for GM 10.5" (14 Bolt) Open Differential w/Full-Floating Axle | Replaces Eaton 19610-1, 19689-1, PowerTrax 1955-LR, GT231430

Image of PowerTrax 9204352706 No-Slip Differential Locker, 27 Spline, Fits Dana 35, Front/Rear, Compatible with Jeep Wrangler, ford Explorer, Dodge Dakota

$301.52

PowerTrax 9204352706 No-Slip Differential Locker, 27 Spline, Fits Dana 35, Front/Rear, Compatible with Jeep Wrangler, ford Explorer, Dodge Dakota

Image of PowerTrax 9203923105 No-Slip Differential Locker – Chrysler 9.25" 31-Spline – Fits Dodge Ram 1500, Dakota, Durango, Chrysler Aspen, B-Series, D-Series – Replaces 1220-LR, 187C172A, 9203923125

$394.50

PowerTrax 9203923105 No-Slip Differential Locker – Chrysler 9.25" 31-Spline – Fits Dodge Ram 1500, Dakota, Durango, Chrysler Aspen, B-Series, D-Series – Replaces 1220-LR, 187C172A, 9203923125

$402.50

PowerTrax 9207852805 No-Slip Differential Locker, 28 Spline, Fits GM 8.5" 10-Bolt, Compatible with Chevrolet, GMC, Buick, Oldsmobile & Pontiac

Image of PowerTrax No-Slip Differential Lock for Ford 9" 28 Spline Open Carrier | Compatible with Ford Bronco, F-100, F-150, Mustang, Thunderbird, Lincoln Continental | Replaces Eaton 187SL13A, Ford D3SZ4026A

$374.59

PowerTrax No-Slip Differential Lock for Ford 9" 28 Spline Open Carrier | Compatible with Ford Bronco, F-100, F-150, Mustang, Thunderbird, Lincoln Continental | Replaces Eaton 187SL13A, Ford D3SZ4026A

Image of PowerTrax 9207822805 No-Slip Differential Locker, 28 Spline, Fits GM 8.2" (10 Bolt), Compatible with Chevrolet Camaro, Chevelle, Impala, Pontiac Firebird, GTO

$373.72

PowerTrax 9207822805 No-Slip Differential Locker, 28 Spline, Fits GM 8.2" (10 Bolt), Compatible with Chevrolet Camaro, Chevelle, Impala, Pontiac Firebird, GTO

Image of PowerTrax 9207863005 Differential Locker -30 Spline | Fits GM 8.625" 10-Bolt | Compatible with Cadillac Escalade, Chevy Silverado 1500, GMC Sierra 1500 | Replaces Eaton 187C148A, Auburn Gear 542097

$425.10

PowerTrax 9207863005 Differential Locker -30 Spline | Fits GM 8.625" 10-Bolt | Compatible with Cadillac Escalade, Chevy Silverado 1500, GMC Sierra 1500 | Replaces Eaton 187C148A, Auburn Gear 542097

Image of PowerTrax 9206883128 No-Slip Differential Locker, 31 Spline, Fits ford 8.8" 10-Bolt, Trac-Lok, Compatible with F-150, Mustang, Explorer, Ranger, Crown Victoria

$391.19

PowerTrax 9206883128 No-Slip Differential Locker, 31 Spline, Fits ford 8.8" 10-Bolt, Trac-Lok, Compatible with F-150, Mustang, Explorer, Ranger, Crown Victoria

Image of PowerTrax No-Slip Differential Locker GM 9.5", GM 9.25" IFS, Chrysler 9.25", 33 Spline, Open Differential, Fits Silverado, Sierra, Tahoe, Suburban, Ram 2500, Hummer H2, Replaces Eaton 19590-1, 542087

$423.92

PowerTrax No-Slip Differential Locker GM 9.5", GM 9.25" IFS, Chrysler 9.25", 33 Spline, Open Differential, Fits Silverado, Sierra, Tahoe, Suburban, Ram 2500, Hummer H2, Replaces Eaton 19590-1, 542087

Image of PowerTrax No-Slip Ford 9" Differential Locker 31 Spline -Fits Open Differential | Compatible for Ford, Lincoln, Mercury | Replaces Eaton 187SL17B, Auburn Gear 542036 | Heavy-Duty Performance

$480.72

PowerTrax No-Slip Ford 9" Differential Locker 31 Spline -Fits Open Differential | Compatible for Ford, Lincoln, Mercury | Replaces Eaton 187SL17B, Auburn Gear 542036 | Heavy-Duty Performance

Image of PowerTrax 9201202900 No-Slip Differential Locker, 29 Spline, Fits AMC 20, Open Differential, Compatible with Jeep CJ5, CJ7, Cherokee, Wagoneer, AM General Hummer, AMC AMX, Javelin

$388.01

PowerTrax 9201202900 No-Slip Differential Locker, 29 Spline, Fits AMC 20, Open Differential, Compatible with Jeep CJ5, CJ7, Cherokee, Wagoneer, AM General Hummer, AMC AMX, Javelin

$529.99

Powertrax No-Slip Traction Fits Chrysler 9.25" (9 1/4") 31 Spline Axle 12 Cover Bolt Rear Trac-LOK Differential 9203923125

Image of PowerTrax 9207883005 No-Slip Differential Locker, 30 Spline, Fits GM 8.875" (12 Bolt), Compatible with Chevrolet C10, K10, Camaro, Chevelle, Pontiac Firebird, GTO

$428.94

PowerTrax 9207883005 No-Slip Differential Locker, 30 Spline, Fits GM 8.875" (12 Bolt), Compatible with Chevrolet C10, K10, Camaro, Chevelle, Pontiac Firebird, GTO

Image of PowerTrax 9203822905 No-Slip Differential Locker, 29 Spline, Fits Chrysler 8.25", Rear, Compatible with Dodge Dakota, Durango, Ram 1500, Jeep Cherokee, Liberty

$350.65

PowerTrax 9203822905 No-Slip Differential Locker, 29 Spline, Fits Chrysler 8.25", Rear, Compatible with Dodge Dakota, Durango, Ram 1500, Jeep Cherokee, Liberty

Image of PowerTrax 9206882807 No-Slip Differential Locker, 28 Spline, Fits ford 8.8", Rear Axle, Compatible with ford Mustang, Ranger, Crown Victoria, Lincoln Town Car

$545.66

PowerTrax 9206882807 No-Slip Differential Locker, 28 Spline, Fits ford 8.8", Rear Axle, Compatible with ford Mustang, Ranger, Crown Victoria, Lincoln Town Car

$494.99

Powertrax No-Slip Traction Fits Ford 8.8" 31 Spline Axle 10 Ring Gear Bolt Rear Open Differential 7/8" Shaft 9206883108

$389.90

Powertrax No-Slip Traction Fits Ford 9" 31 Spline Axle 10 Ring Gear Bolt Rear Open Differential Locker Assembly 9206903100

Image of PowerTrax 9206802800 No-Slip Differential Locker Ford 8" 28 Spline Open Rear, Fit for Ford Fairlane, Mustang, Torino, Falcon, Granada, Replaces Eaton 187S13D, Auburn Gear 542059, PowerTrax 1810-LR

$139.73

PowerTrax 9206802800 No-Slip Differential Locker Ford 8" 28 Spline Open Rear, Fit for Ford Fairlane, Mustang, Torino, Falcon, Granada, Replaces Eaton 187S13D, Auburn Gear 542059, PowerTrax 1810-LR

Image of PowerTrax 9207752605 No-Slip Differential Locker, 26 Spline, Fits GM 7.5" Open Differential, Compatible with Chevrolet Camaro, S10, Caprice

$548.38

PowerTrax 9207752605 No-Slip Differential Locker, 26 Spline, Fits GM 7.5" Open Differential, Compatible with Chevrolet Camaro, S10, Caprice

Image of PowerTrax No-Slip Differential Locker –Toyota 8" 30-Spline, Fits Toyota 8" Open Differential, 2-Pinion Case –Compatible for Toyota 4Runner, Land Cruiser, Pickup –Replaces Eaton 187SL61B, Auburn 544902

$386.25

PowerTrax No-Slip Differential Locker –Toyota 8" 30-Spline, Fits Toyota 8" Open Differential, 2-Pinion Case –Compatible for Toyota 4Runner, Land Cruiser, Pickup –Replaces Eaton 187SL61B, Auburn 544902

$477.99

Powertrax No-Slip Traction Fits Chrysler 8.25" (8 1/4") 27 Spline Axle 10 Ring Gear Bolt Rear Open Differential Locker Assembly 9203822705

Image of PowerTrax 9207853005 No-Slip Differential Locker, 30 Spline, Fits GM 8.5" (10 Bolt), Compatible with Chevy Blazer, C1500, K1500, S10, GMC Yukon, Sonoma

$382.79

PowerTrax 9207853005 No-Slip Differential Locker, 30 Spline, Fits GM 8.5" (10 Bolt), Compatible with Chevy Blazer, C1500, K1500, S10, GMC Yukon, Sonoma

Image of PowerTrax 9204352725 No-Slip Differential Lock | Dana 35 | 27-Spline | Trac-Lok | C-Clip | Case ID 1.626" | Compatible for Jeep Wrangler, Grand Cherokee, Ford Explorer, Ranger, Dodge Dakota, AMC

$422.67

Image of PowerTrax 9207822801 No-Slip Differential Locker, 28 Spline, Fits GM 8.2" BOP (10 Bolt), Compatible with Pontiac GTO, Firebird, Grand Prix, Buick Skylark, Oldsmobile Cutlass

$465.96

PowerTrax 9207822801 No-Slip Differential Locker, 28 Spline, Fits GM 8.2" BOP (10 Bolt), Compatible with Pontiac GTO, Firebird, Grand Prix, Buick Skylark, Oldsmobile Cutlass

$453.81

PowerTrax 9207752605 No-Slip Differential Locker, 26 Spline, Fits GM 7.5" Open Differential, Compatible with Chevrolet Camaro, S10, Caprice

Product Technical Information

Product Code	B000FQ7FSE
Market Place	amazon.com
Market Place Name	Amazon.com
Brand Name	PowerTrax
Rating	4.2 ( 153 ratings )
Category	Differential Assembly Kits
Manufacturer	Powertrax
Model Number	9204603500

Frequently Asked Questions

What is the lowest price ever for this product? ▶

The lowest price for PowerTrax No-Slip Ford 934 Differential Locker 31 Spline -Fits Open Differential Compatible for Ford Lincoln Mercury Replaces Eaton 187SL17B Auburn Gear 542036 Heavy-Duty Performance was $257.46 on 6th Aug 2020. This is the best recorded deal so far.
What is the highest price ever for this product? ▶

The highest price for PowerTrax No-Slip Ford 934 Differential Locker 31 Spline -Fits Open Differential Compatible for Ford Lincoln Mercury Replaces Eaton 187SL17B Auburn Gear 542036 Heavy-Duty Performance was $697.36 on 29th Feb 2024. Prices have dropped since then.
What is the average price of this product? ▶

The average price for PowerTrax No-Slip Ford 934 Differential Locker 31 Spline -Fits Open Differential Compatible for Ford Lincoln Mercury Replaces Eaton 187SL17B Auburn Gear 542036 Heavy-Duty Performance is $483.69 (817 data points). This helps you compare current deals.
What is the lowest price in the last 3 months? ▶

In the last 3 months, PowerTrax No-Slip Ford 934 Differential Locker 31 Spline -Fits Open Differential Compatible for Ford Lincoln Mercury Replaces Eaton 187SL17B Auburn Gear 542036 Heavy-Duty Performance reached a low of $480.72 on 19th Nov 2025. Recent price trends may help you decide when to buy.
Should I buy this product now? ▶

Worth buying. The price is good, but you may wait for a better deal.