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What Rear End & Front End Size Do I Have?

Dank Xploidz

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Dank Xploidz Enthusiast

Dank Xploidz

Posted
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I'm going to regear my truck. I just upgraded from 285s, to 315s. I currently have 3.73s. I don't know what size I need to order, and what gear ratio would be best for my driving. I do about 70% city and 30% highway, I would prefer power of gas milage, but to a certain extent. I have a buddy who will change both the rear end and the front in for 200 bucks each. I just need to take him the ring and pinion, and I guess an installation kit? What all would I need to take to him? Thanks

 

By the way, I don't do much towing other than my 15 foot jon boat. I also have a 305 5.0L, not a 5.7L.

Nytemare Senior Enthusiast

Nytemare

Posted
Posted
Thats what I have been talking to people about, but I haven't had one person agree with me. Everyone tells me to go with 4.11s.

Well you drive a chevy...so you cant get 4.11's in the first place...Chevy uses 4.10's...4.11's are ford gears...those will not fit at all.

4.10's are not exactly a huge increase over 3.73...they're not big enough for 35's...4.56's are going to be a smidg too big, but more is usually never a bad thing. By rights...you would need about a 4.30 gear set to make your truck feel like stock....but 4.56's are much more common and easier to come by.

 

Hit up Randy's ring and pinion for the gears and install kits.

FarmerDave Enthusiast

FarmerDave

Posted
Posted

Ok well, going from stock wheels to 35" you would want 4.56 to have similar driveability. But to have the 35's run like the 285s 4.10 would work for that. If you like the way your truck drives now, get 4.10. If you want more torque/power get 4.56.

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