4.96 gears?
- Thread starter reefkrazy
- Start date
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Poly Performance JEEP/TRUCK & BUGGY*::*Ring & Pinion*::*Yukon Ring & Pinions*::*Ford*::*Yukon Gear Ford 9.75" DRing and Pinion Sets - 4X4 Off-Road Parts
It goes from 4.88's to 5.13's.
Sure if you do a search on the yukon part number you can find other vendors that sale.
It goes from 4.88's to 5.13's.
Sure if you do a search on the yukon part number you can find other vendors that sale.
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FordandPolaris
Full Access Members
As long as you do front and back you should be fine, though on 33's you will be running pretty high RPM's at highway speed. I would do the 38's and gears fairly close together.
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tonydiv
technical advisor
If you do the gears first, the truck will feel like a rocket when you accelerate. (comparatively)
If you do a lot of highway driving, you'll definitely want to take the advice above and get that bigger rubber on asap.
If you do a lot of highway driving, you'll definitely want to take the advice above and get that bigger rubber on asap.
mc0311grunt
Full Access Members
yes do both front and back. Your speedo will be off unless you have a tuner. Here is a calculator to figure out roughly what rpms you will be at 65mph
Wallace Racing - Calculate RPM for given MPH, Rear Gear Ratio and Trans Gear Ratio
Wallace Racing - Calculate RPM for given MPH, Rear Gear Ratio and Trans Gear Ratio
FordandPolaris
Full Access Members
In theory they will provide much quicker acceleration. But you say you drive 65 due to gas use. taller gears means higher engine RPM's, which will mean much less fuel economy. If you do the gears and tires together, they will essentially be similar to having 3.73 gears on 31" tires (not sure on the exact math but you get the idea), therefore engine RPM's will come down to stock area. That is why you should try and do them close together.
If you want an idea on how bad the fuel economy will be if you just do gears and wait on tires, drive an hour at 65 with OD shut off after filling it up. Then fill it up again and see how many gallons it takes to go however many miles you made it in an hour (roughly 65 haha). It should run a little higher RPM's than what you will see with the new gears and in OD, but it will give you a rough estimate.
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I get the picture lol. I can just take out a hundred and burn it up ! Ok so my plan is to get the tires. put them on then do the gear swap. For gas reasons and work being a 100 miles a day, Im going to get a beater car. Only drive the monster on the weekends.
FordandPolaris
Full Access Members
Thats why I have a hard time putting any bigger than 33's on the truck haha. I like being able to drive it daily, despite the gas cost. But if for whatever reason I get a different truck before this one dies, it is going to become a weekend toy for sure.
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LucasLutian
Member
As long as you do front side and for the rear you should be excellent, though on 33's you will be operating fairly high RPM's at road rate. I would do the 38's and equipment fairly close together.
Cool!
FordandPolaris
Full Access Members
Canadian Expy
Full Access Members
I did 4.56 and the rpms are pretty good with 35". I plan to go to a 38" or 40" tire when money happens. Although I would have done 4.88 but I drop to a 34" winter tire so Didn't want that gear and 34" tires. I do alot of highway driving.
Thanks for that info!
