Will this fit a 86 Chevy C10 with the 8.5 10 bolt rear?

no you will need 30 spline axles those trucks used 28 spline axles

This fit a 94 chevy 1500?

Yes, this unit will work GREAT in a 1994 Chevy 1500. Let me know if you have any other questions. Thanks, BRYDON 641-751-8060 staticz2229@gmail.com

Is this a drop in replacement?

Almost a drop in unit, you will have to move your ring gear from your original unit..and press on new bearings...

Will this fit a 1973 Pontiac Firebird?

First answer is not correct. This is NOT for a 9.5” 14 bolt. The description states it is for a 10 bolt 8.5” or 8.6” with 30 spline axle shafts

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Yukon Gear & Axle Dura Grip Limited Slip Differential Positraction, 30-Spline, 3.73 & Down Ratios, Compatible with Dana 44 Axle, YDGD44-3-30-1

Product ID: 2611217

⚙️30-spline precision fit

🛠️fully rebuildable design

🛡️forged 4320 chromoly gears

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23094499₫

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Description

🛞 Own the road with unstoppable grip and legendary durability!

TRUSTED BY ENTHUSIASTS - Backed by a 4.7-star rating and a one-year warranty, join thousands upgrading to Yukon’s proven reliability.
PRECISION ENGINEERED FIT - Tailored for Dana 44 axles with 3.73 & down gear ratios, ensuring seamless integration and peak performance.
REBUILDABLE FOR LONGEVITY - Designed for easy repairs and upgrades, extending your differential’s lifespan and value.
MADE IN THE USA WITH PRIDE - Crafted with meticulous attention to detail, guaranteeing quality you can trust on every terrain.
DURABILITY MEETS PERFORMANCE - Forged 4320 chromoly spider gears and composite clutches deliver aggressive traction without compromise.

The Yukon Gear & Axle Dura Grip Limited Slip Differential (YDGD44-3-30-1) is a high-performance, rebuildable positraction unit designed specifically for Dana 44 axles with 30 splines and 3.73 & down gear ratios. Featuring forged 4320 chromoly spider gears and composite clutches, it delivers smooth yet aggressive traction for enhanced handling and stability. Proudly assembled in the USA, this differential offers superior durability, easy maintenance, and is trusted by automotive enthusiasts for off-road and high-performance applications.

Specifications

ASIN	B00AWE6396
Best Sellers Rank	#32,556 in Automotive ( See Top 100 in Automotive ) #9 in Automotive Replacement Differential Assembly Kits
Brand	Yukon Gear & Axle
Customer Reviews	4.7 4.7 out of 5 stars (1,634)
Date First Available	January 3, 2013
Exterior	Machined
Is Discontinued By Manufacturer	No
Item Weight	10 pounds
Item model number	YDGD44-3-30-1
Manufacturer	Yukon Gear & Axle
Manufacturer Part Number	YDGD44-3-30-1
Model	DuraGrip Limited Slip Differential Positraction Dana 44 w/30 Spline 3.73- Ratio
OEM Part Number	YDGD443301

Reviews

C**M

21.02.2026

M**X

16.08.2025

C**S

17.11.2025

L**S

18.01.2023

M**.

5.03.2026

D**8

26.01.2026

C**9

9.06.2024

J**N

21.03.2026

E**Z

17.09.2022

M**S

21.02.2020

A**R

15.10.2024

T**S

13.11.2020

G**N

20.12.2022

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23094499₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.

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