I have a 8.75 rearend with a 3:91 ratio. 489 case. I am going to go with a 3:55 ratio. would you go with a Richmond gear or Auburn gear or somethin else. I heard a Richmond gear is pretty noisy. Please give me your suggestions.thanks
If gears make noise it's more likely installer error instead of brand.
X2 on that! Also find yourself another 489 case and have the 3.55 put into with a solid sleeve instead of the crush sleeve. This way you can swap between the two gear sets in about 30 minutes or so.If gears make noise it's more likely installer error instead of brand.