The 5.29 Mega Thread!!

Two months after my 5.29 install and what a difference. Not a single gear hunting episode in that time over the same roads that drove me nuts daily for four years.

I have a question for those of you towing with 5.29’s. I have a 4800lb travel trailer and per the owners manual I tow in S4.

With the 5.29’s do you now tow in 6th (or D) or do you stick with 5th??

 

5.29s with 35s here and I'm very happy with the gears. I've had this setup for a few thousand miles now with the stock tune and it drives great. Much quicker off the line and holds gears way better without the hunting it had before. Only problem is the top speed limiter kicking in at 92/93mph.

I guess it's subjective, but I'm surprised some are saying they don't feel much difference after going to 5.29s. It's a night and day difference to me.

 

Curious about the limiter. Did you get something like a hypertech speedo calibrator after the regear and tire change?

 

The speedometer device just intercepts the incoming speed value from...wherever its computed in the truck, and outputs a new value to the instrument cluster based on the tire size you specify. It cannot affect the governer. As far as I know, the only option for that is a tune, which has been discussed multiple times elsewhere in this thread.

 

How many of you running Nitro gears are running their Nitro 80w-140 synthetic oil, vs another synthetic oil (what kind)? Any pros and cons other than cost?

 

There's a poll at the top, to see what viscosity everyone is running. Although I'm on 4.88's, I've been running

$30 75w-90 Synthetic Gear Lube - 1 Quart (Pack of 2)

75w-90 with out any troubles. Just did a 22000 change the other day and all looked good. Some minute shavings on the plug but nothing I found worrisome

 

Hello all, Tuff here, been a minute. .... Anyone running YUKON 5.29's, instead of the NITRO. These are the ones I installed compared to the NITRO .... Im having an Issue with "Stuttering" (shaking) at the take off, (first gear) but once I hit higher RPMs, the "stuttering" stops .....

 

Sounds like torque converter shudder. How many miles since last fluid change? Unless manual then check your clutch.

 

Torque Converter, .. interesting haven't thought of this. I haven't changed this fluid in the torque converter ... Ill check it out, Thanks brother Appreciate ya ...

 

Anybody got a link for a differential counterweight type of thing? I can't recall the name but it's supposed to change the resonance frequency. The whine is starting to drive me crazy

 

The dynamic damper that Toyota installs on th Hiace diff is part number 41196-26090. The Hiace differential carrier/case has a place for it to bolt, the Tacoma doesn't.

 

On the fence with 4.88 and 5.29.

Running 285/70/17, 2” in front, 2” in back. No plans for armor or extra weight,

Any thoughts? Usually don’t drive faster than 75mph, but once a year make a 10 hour road trip where speed limits reach 80 and 85.

Thanks in advance

 

If youre not going to go to 315s dont bother with 5.29s

 

I'm running 5.29s on 285s with no complaints

 

Do you drive 75-80mph ever?

 

Oh yeah man all the time going up and down I85. At ~85mph I want to say you're still under 3k RPM. No chance the engine could push the truck that fast at any lower RPM so in my estimation 5.29s actually allow you to use 6th rather than constantly shifting back down to 5th for a headwind or a small hill at higher speeds.

 

Good to know! What kind of mpgs do you usually get?

 

Driving 60 I can get about 17mpg, 70 gets about 15mpg, and 80+ takes her down to 13 or so.

Drag is roughly equal to speed^2 (an exponential function) and the truck is a brick.

 

Are you running with extra weight or snorkel or anything as well?

 

Yeah front bumper/winch, rear bumper w/ swingout and spare tire, topper and roof racks on cab and topper. Like I said it's a brick