muleys86
Junior Member
- Joined
- May 6, 2016
- Posts
- 16
- Reaction score
- 0
- Location
- East Tennessee
- First Name
- Doug
- Truck Year
- 1986
- Truck Model
- C10 Scottsdale
- Engine Size
- 4.3
Well, after replacing the glovebox plastic I found a rpo code for the trans in my 86 Scottsdale. This truck has the 4.3 v6 and the mm7 trans. I thought it was the my6. So what is the difference in these two trans?
I like this combo, just wish it got better mileage. Is the my6 an aluminum case and the mm7 cast iron or vice versa? Ive had this truck almost two years and would have sworn it was an my6. All info is greatly appreciated. Muley
I like this combo, just wish it got better mileage. Is the my6 an aluminum case and the mm7 cast iron or vice versa? Ive had this truck almost two years and would have sworn it was an my6. All info is greatly appreciated. Muley