Skip to content

Eaton GM 8.5in Rear Master Install Kit

Marsoni M251S
Sale price$149.99
Pay 4 payments of $37.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Eaton GM 8.5in Rear Master Install KitEaton master installation kits make upgrading your differential easier by providing all the components needed to properly install your Eaton differential or replace your ring and pinion, in one box. Premium bearings and components ensure long life and quiet operation. This Part Fits: Year Make Model Submodel 1973 1975 Buick Apollo Base 1975 Buick Apollo SR 1973 1977 Buick Century Base 1975 1977 Buick Century Custom 1976 Buick Century Indianapolis 500
Easy Shipping

Quick Dispatch:

Your Eaton GM 8.5in Rear Master Install Kit orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Eaton GM 8.5in Rear Master Install Kit ships.

Need Help?
Questions about Eaton GM 8.5in Rear Master Install Kit, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Eaton GM 8.5in Rear Master Install Kit in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1331 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
N
Verified Purchase
Nae
Lowell, US
★★★★★ 1
Smells too strong
Size: 5 in
My dog hates the way this thing smells. She tries to play with it, but the scent is too strong for her nose. I know it's the scent because she usually sniffs it two or three times in between trying to grab it with her mouth. She treats it like an explosive in her mouth and quickly moves away after spitting it out. She used to have a bone that looked similar to this (same material) that was unscented and she gnawed the hell out of it. My sister's pitbull spent the night and chewed that toy into bits, leaving my Yorkie mourning the loss of her once treasured bone. Please make an UNSCENTED version of this toy!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2023
T
Verified Purchase
Tamara L.
Pawtucket, US
★★★★★ 5
Worth the money for heavy chewers
Color: Brown-X
I finally found a dog chew that my puppy can't destroy in a half an hour or less. My puppy loves this, chews on it for hours and still holding up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
M
Verified Purchase
MM
Chelsea, US
★★★★★ 5
Holds up to a
Color: Brown-O
Bought this because of other positive reviews. It does hold up to an aggressive chewer but the pieces are sharp once it’s “broken in”. I bought the circular one as I figured that one would be less likely to break. It is still good after about 6 weeks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
K
KO
Birmingham, US
★★★★★ 4
My dog didn’t take to it, but yours might.
Color: Brown-O
This is a very durable toy that’s reasonably priced. For some reason, my dog didn’t take to it. It might be the round shape, but there’s nothing wrong with the product. The size is good for large dogs. My dog is 50 pounds and there’s a chance it was too big for him. I’m not sure. But I think if your dog has enjoyed other similar toys, this is a good buy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 15, 2025
B
Verified Purchase
B. Ferrante
Dallas, US
★★★★★ 5
Fun and practical for our power chewer
Color: Brown-O
Four paws up! It is great for chewing and for rolling in a fetch game. Our powerful chewer loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 23, 2025

recommand products