Yes it will help A LOT with 4.10s
Lifting a Daily Driver
- Thread starter tigerKJ
- Start date
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Yes it will help A LOT with 4.10s
TwoBobsKJ
Full Access Member
X2 on what Tom said.
I ran the stock 3.73's with 255/70-16's and mileage dropped to the 15mpg range on the highway and the 255's aren't that much bigger than stock. But it was enough to throw the gearing out of whack and cause the engine to either lug or force me to turn off the OD.
Now I'm running 265/70's with 4.10's and mileage is up to 18 to 20 depending on speed on the highway and I rarely turn off the OD now during normal driving. My speedo is off by 5% according to GPS measurement but not a big deal. The EVIC-reported mpg ain't even close :happy175:
And don't tell anyone, but my odometer is also 5% off :gr_grin:
Bob
Is yours auto or stick?
Our KJ's speedo became more accurate after the larger tires. Never did a 'before' calc for fuel economy, but now it pulls down 18mpg (hwy) with 3.54 and 6-speed manual.
BorincanoKJ
Full Access Member
Upper A-arm pocket is hitting below the lip where i am pointing with the arrow in the photo. I need to work on it.
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Its fine, doesn't go more than that anyways
tigerKJ
Full Access Member
Mine's an automatic.
OK, since I am going with larger tires it sounds like 4.10s are the way to go. If I was thinking about a locker (ARB or Detroit TrueTrac) I'm guessing that would be the time to do that.
I remember on a friends YJ he needed a slip yoke eliminator (SYE) kit, on the transfer case (NV231), when he lifted his Jeep. It also strengthened that part (I think his came with a new shaft) and had a stronger yoke.
I have seen the kits for the Liberty, since I also have the NV231, and was wondering if it is a good idea to add the SYE kit? My Liberty is not as short as a YJ so I think it is questionable.
TwoBobsKJ
Full Access Member
Hey tigerKJ, don't know if you saw this or not but if you're still looking for a lift kit and haven't purchased anything yet you may want to send mx3_ryder a PM... :waytogo:
Suspension Lift For Sale
Bob
Suspension Lift For Sale
Bob
BorincanoKJ
Full Access Member
Tommudd
Thank you for your advice.
Thank you for your advice.
dude1116
Full Access Member
Did you tighten the UCA bushing bolts with the weight of the Jeep on the ground? It looks like they got tightened when they were drooping.
BorincanoKJ
Full Access Member
Hi dude1116
No i did not tighten UCA with the weight of my jeep on the ground. That is my left side of UCA showed in the picture.
No i did not tighten UCA with the weight of my jeep on the ground. That is my left side of UCA showed in the picture.
Anything installed that have bushings should have full weight beofre you do final tighening. If not you are preloading that bushings. That goes for UCAs/ rear lower , sway bar etc
tigerKJ
Full Access Member
That is what I have noticed - the common theme is people put their lift on, torque everything down and then find out you don't torque until the weight is back on the vehicle.
So as we discuss lifting a Liberty, I learn what to do and not to do.
This really helps. Thanks, everyone!
So as we discuss lifting a Liberty, I learn what to do and not to do.
This really helps. Thanks, everyone!
dude1116
Full Access Member
Easy fix. Lift the Jeep up, open the engine bay, loosen the 4 UCA bolts a few turns, then drop the Jeep to the ground and re-tighten. You WILL notice a difference in the way that it rides. I also have a feeling that it will stop the arms from hitting the body.
BorincanoKJ
Full Access Member
I will be working this again as recommended.
Thanks to everyone!
Thanks to everyone!
