For a built truck with craptacular aero definitely 4.88.
For an otherwise stock truck, check Teckis300’s definitely gearing post table
Yes! Absolutely 4.88 with 37s.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
For a built truck with craptacular aero definitely 4.88.
For an otherwise stock truck, check Teckis300’s definitely gearing post table
Coming from someone who just finished breaking in the 4.88 gears on 37s I see your point of view. However, having an aftermarket exhaust, my 4.88 running at 60mph is super droney lol. I can’t imagine a 5.29 on the highway lol. That’s just me.That is correct. A deeper gear. I wish it was possible to do a transfer case reduction, both high and lo. That would be ideal.
The juice would not be worth the squeeze from a 4.88 to 5.19 or 5.29 IMO.
That's your aftermarket exhaust's fault.Coming from someone who just finished breaking in the 4.88 gears on 37s I see your point of view. However, having an aftermarket exhaust, my 4.88 running at 60mph is super droney lol. I can’t imagine a 5.29 on the highway lol. That’s just me.
Yeah. I was gonna say the same thing. Revs are just to low in 6th. Heck even in 4th.That's your aftermarket exhaust's fault.
Factory exhaust, 4.88s and 35s. I don't notice any exhaust drone on the highway... all my noise is from tires and wind (roof rack). Closing the sunroof helps a bit.
Practically speaking, 37s should be slightly better noise-wise since they'd put you a few RPMs lower.
I also don't notice any drone or excessive noise when towing in 5th on the highway, which revs me higher, 4th is noisier when towing but I expect that at ~3500 rpms and it's not exhaust drone from the rear just good 'ol fashioned V8 revs from the front.
.5”?Don’t be giving anyone any ideas about .5”. Next thing you know someone will ask for .25”
1” should be a good starting point for anyone to consider 37’s, but 1.5” is best, imo. .75” maybe if someone is just trying to give themselves a little extra for an aggressive 35” tire.
I was only planning on offering 1” to start and 1.5” sometime after that.
If you’re starting a build, don’t take baby steps with the body lift. Do it once and build the protection around that height.
(And your chart should say “Highly Motivated” for the last column)
But does it melt?Some 3/4” going out for testing…
View attachment 3577221
Anyone who has been involved in figuring out a manufacturing process knows things aren’t fast. And this stuff doesn’t cut like metal, but be patient, I’ll keep trying to work towards offering something as soon as I can.
Yes, it does melt. But at about 266 degrees. And I have seen photos of an exhaust too close and partially melting one, but I don’t think that’s a problem on our chassis. One source shows 180 degree “maximum continuous service temp in air”, again, good to know but I don’t think this should be an issue where these are located. They haven’t been an issue on any of my three vehicles using UHMW.But does it melt?
Sorry, I was very unclear. I was suggesting that instead of milling perhaps they could be shaped by hot wire or similar.Yes, it does melt. But at about 266 degrees. And I have seen photos of an exhaust too close and partially melting one, but I don’t think that’s a problem on our chassis. One source shows 180 degree “maximum continuous service temp in air”, again, good to know but I don’t think this should be an issue where these are located. They haven’t been an issue on any of my three vehicles using UHMW.
You’re a saintSome 3/4” going out for testing…
View attachment 3577221
Anyone who has been involved in figuring out a manufacturing process knows things aren’t fast. And this stuff doesn’t cut like metal, but be patient, I’ll keep trying to work towards offering something as soon as I can.
Never done body mounts before. How hard are these to install?
Oh, I see. I’ll have to research that methodSorry, I was very unclear. I was suggesting that instead of milling perhaps they could be shaped by hot wire or similar.
I’ve already broken one rear axle and feel like it’s just a matter of time before it happens again.
View attachment 3572915
View attachment 3572918
Nope. Pulled the 3rd and flushed everything as good as could be done. There were a few marks from the axle flopping around (I ended up having to drive about 20 miles on the broken axle) but locker still works and everything is good almost 2 years later.No harm to the diff?
Meaning the wheel bearing or the diff bearing?If it happens again I'll pull the axle on th trail and cut the axle off close as I can to the bearing. I think I could drive from Moab back tp Ga like that if I had to.
I hate that these trucks aren’t full floater![]()
Wheel bearing. That way you don’t have 3 feet of axle flopping around and putting leverage on the wheel bearing.Meaning the wheel bearing or the diff bearing?
I actually had in my head that the splined end of the axle needed to be in the diff to stabilize the wheel bearing.. that these bearings are different than the front.. the races are closer together really increasing the leverage of the tire over them, and that Toyota may have depended on the axle resting in the diff to keep things stable. Basically, that these axle bearings really aren’t designed to be used in a full-float manner.Wheel bearing. That way you don’t have 3 feet of axle flopping around and putting leverage on the wheel bearing.
Pulling the axke takes about 10 minutes in the field so it’s not too bad to do in a pinch.
I agree with what @bloc said about the bearing requiring the support from the shaft engagement into the diff - it's not like a unit bearing on the front (unit bearings have 2 bearings and are designed for those forces).Nope. Pulled the 3rd and flushed everything as good as could be done. There were a few marks from the axle flopping around (I ended up having to drive about 20 miles on the broken axle) but locker still works and everything is good almost 2 years later.
I keep a cut off wheel in the truck now. If it happens again I'll pull the axle on th trail and cut the axle off close as I can to the bearing. I think I could drive from Moab back tp Ga like that if I had to.
I hate that these trucks aren’t full floater![]()
Most definitely. The axle is meant to be in the carrier to stabilize the bearing. This is just an emergency fix.I actually had in my head that the splined end of the axle needed to be in the diff to stabilize the wheel bearing.. that these bearings are different than the front.. the races are closer together really increasing the leverage of the tire over them, and that Toyota may have depended on the axle resting in the diff to keep things stable. Basically, that these axle bearings really aren’t designed to be used in a full-float manner.
Pure speculation on my part.
I also thought there was a ring within the housing that roughly locates the axle going into the diff, and that might reduce flopping. But it would be metal on metal and not a good candidate to drive halfway across the country..