Re Gearing
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Cross-Country
Joined: Dec 2008
Posts: 62
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From: Valley of the Sun
Re Gearing
I have already done the math and re-gearing to 4.30 is going to put me where I want to be. 62 mph at 2000 RPM. Now the question is making sure I get the right parts. I got a quote from Bronco Graveyard for both axles $749 shipped for Yukon gears, Timken bearings and shims. Also includes the seals and what not.
The two questions,
Fair enough price?
What if any other parts should I think about while I am in there?
Thanks again,
The two questions,
Fair enough price?
What if any other parts should I think about while I am in there?
Thanks again,
Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
I usually deal with Randy's Ring and Pinion (ringpinion.com). They are great customer service and good prices. I'd go with the Yukon gears and master rebuild kits. Are you doing the swap yourself or having a shop do it? What size tires will you be running?
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Cross-Country
Joined: Dec 2008
Posts: 62
Likes: 0
From: Valley of the Sun
I have 315/75R16 s (35") tires. I tried both Randy's and Bronco Graveyard. Both were knowledgeable and showed good customer service. Randy's was $300 more expensive.
I am not doing it all by myself, it is good to have buddies in the craft. It will probably cost me a dinner for him and his wife while we babysit their kids. I figure that is a good trade off. Well at least cheaper anyway.
I am not doing it all by myself, it is good to have buddies in the craft. It will probably cost me a dinner for him and his wife while we babysit their kids. I figure that is a good trade off. Well at least cheaper anyway.
Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
Have you or your friend done gears before? Its quite a job that requires some special tools. I did mine, in December, in an unheated shop, and it was miserable. I bought Randy's Differentials book for reference and spent $300-400 on tools and some extra shims and oil baffles. Now that I've done it, I'd do it again, but it was quite a learning experience. If you don't tow heavy or often, you probably won't be pleased with the results. I really didn't notice a huge difference unloaded changing from 3.73s to 4.30s with 35s. If you don't tow often, there's other areas the money would be better spent.
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Cross-Country
Joined: Dec 2008
Posts: 62
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From: Valley of the Sun
By trade, I meant he is a Mechanic by trade. Yes he does this for a living. I am in sunny southern kalifornia and I have access to a good shop. Not too worried about freezing.
Towing is the main reason I am going to the 4.30 gears. I pull a large fifth wheel. It does fine on flat or without wind, but it works its butt off going up or into a heavy wind.
Towing is the main reason I am going to the 4.30 gears. I pull a large fifth wheel. It does fine on flat or without wind, but it works its butt off going up or into a heavy wind.
Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
If he hasn't done gears before, I really recommend at least buying the Differentials book from Randy's. There are a lot of mechanics that won't touch gears. Also, replace all the axle seals while you're in there, buy oem Ford seals for the inner axle seals on the front, they are better than the ones in the kit and are pricey, so get them online. Also, spend a lot of time polishing the seal surface on the pinion to make sure there are no defects/scratches/etc. My new pinion and new seal on the rear axle have weeped since the gear swap, never dripped, but the housing looks damp, and it bothers me.
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Cross-Country
Joined: Dec 2008
Posts: 62
Likes: 0
From: Valley of the Sun
Thanks for the tip on the inner axle seals. I did not think of those. I will need to look up the part number and shop around.
Thanks
Thanks
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Lead Driver
Joined: Jun 2007
Posts: 6,757
Likes: 5
From: Corvallis, OR
I'll see if I can find my receipt with the part number. I had to buy mine at the Stealership last minute and they were about 2X the cost of buying online at someplace like:
www.partsguyed.com
www.partsguyed.com
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Cargo Master
Joined: Jan 2009
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From: Lubbock
another parts place to look at would be fourwheel parts. some times they run specials that seem pretty cheap. if you have a factory limited slip rebuild or replace it. they wear out and the aftermarket ones are alot better. or if you want one now is the time to do it.
i would make certain you get good quality parts. with axles you really dont want to scrimp they take alot more than you imagine
i would make certain you get good quality parts. with axles you really dont want to scrimp they take alot more than you imagine
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