Ok- so I've searched it a couple times and find conflicting results- BUT the large F2 rear end- can the ratio be changed? I've read NO and YES the winters quick change parts will bolt right in. I'm looking at a F2 rearend with 5x6.5 bolt pattern that I like the looks of for a modified project and I just need to clarify if I can change the 5.33 OR 4.86 ratio- which ever it is, I'd like to get to 3.73 or so. Can anybody shed some light on the large quick change setup that uses two of the driver side axle for? I assume my next problem if I went this route would be to find another with the 5x6.5 pattern as most seem to be 8's OR can I use just that axle.
Your compound question is a bit confusing but I'll try. If you're planning on using the Timken differential carrier as it comes in the F-2 rearend, you'll play hell finding a different ring & pinion. If you intend to build a Q.C. around it, why do you even care what the ring & oinion ratio is? That's what the change gears are for. If you plan on building the old style Q.C. using two driver's side axle tubes and bells, you need to make sure you can find aan 11 bolt center section. The "Championship" size Q.C. started out using the Ford truck bolt pattern but it was upgraded over the years and is now a 12 bolt. As far as the wheel lug pattern, the hub determines that-it's a big heavy full floater. The axles slide in thru the hub and are fastened to the hub via a bunch of small bolts. The axle does not carry the lugs.
Have you checked into a more modern dual wheel axel on the F350 ? I don't know how wide they are but might be close . Then you can get a better gear ratio down to at least a 4.10 and still look OK . You can also check the other dual wheel rears from other brands as well . Might be a lot easer and cheaper in the long run . I honestly don't think you are going to find a 3.73 in any truck rear that big . You could possible get a big Ford 9" and change the axles to fit your rims . Then you can change the gears down to just about any ratio you want . I think a 3.89 would be about the lowest I would use . Just a thought ? Retro Jim
I'd better clarify some- I would prefer to use the axle like it is- in stock form- I just want to get the ratio down (or up-however you want to look at it) and I read in a post that I can use a winters quick change ring and pinion in it and get a -- 3.78 I believe. I was just looking at building a complete quick change setup as a option.
Well I would then pull the rear down to the gears and take a look . Then you will know what will or will not work before you buy any parts . Let us know how you make out and find ! Retro Jim
well I havent bought it yet- that was kinda of the deciding factor-as he has matching front hubs as well. I might just call up winters and see what they say.
O.K., now I know where you're trying to go. I replaced the ring & pinion on one with either a Frankland or a Halibrand years ago and it fit my stock differential carrier. However, I kept the 4.86 (or 4.56) gear because 1) I got it for nothing from a racer, 2) I built a Q.C. out of it, and 3) I couldn't come up with a coupler to fit the tapered & keyed pinion shaft.
I'd like to know more about your quick change build- as this might be a option if I can find the parts.
Well this is ironic, i just bought mistakenly bought a 11 bolt winters q/c to use with my 40 ford tubes and axles. Now ive read this thread and others i understand the difference good luck elroy
Dale, i just bought an f2 for the rearend. my dad told me about what you stated. said it was a cheap option on the race car way back. thanks for your resond, he passed before we moved forward with the swap.
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