I think if your actually using the locker end of it and not haulin heavy weight, good old 80-90 is the way to go.
If your towing a lot, 75-140 and an additive (if you need the locker) is better.
What did you do at work today?
- Thread starter six5creed
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I think if your actually using the locker end of it and not haulin heavy weight, good old 80-90 is the way to go.
If your towing a lot, 75-140 and an additive (if you need the locker) is better.
I do zero towing but I don't even know of I really use the locker. I grandpa drive the crap out of this truck
I have a slick paved driveway, have 11 acres I have to drive sometimes, live on a shit gravel road and use it for a rig ride, I need mine constantly.
75-140 handles heat and loads better, 90w just does what it does.
75-140 handles heat and loads better, 90w just does what it does.
What's interesting is our trucks spec is 75/90 but the half ton Silverados spec is 80/90 front and 75/90 rear. If you put 75/90 in the front it will howl like a mother****er. So i was afraid to even waste fluid trying anything but the recommended in mine.
I have ran royal purple 75-140 in my LLY and LMM for years in the front and rear since we had it at the rig. We don't use it anymore and my locker pissed me off so I put the 80-90 in about 7,500 miles go.
I was at canton yard three weeks ago and rummaged through the older stacked rigs and made out with 15 gal of RP 75-90 and 75-140 and 10 gallon of 15-40 HD.
You can run anything thicker than it calls for g80's are not picky.
I will tell you if you run thicker oil in the front and use 4x4 long distances at highway speed or make it full time diff. it will spit oil out of the over flow. keep it below the fill hole by 1/4" or so
I was at canton yard three weeks ago and rummaged through the older stacked rigs and made out with 15 gal of RP 75-90 and 75-140 and 10 gallon of 15-40 HD.
You can run anything thicker than it calls for g80's are not picky.
I will tell you if you run thicker oil in the front and use 4x4 long distances at highway speed or make it full time diff. it will spit oil out of the over flow. keep it below the fill hole by 1/4" or so
You learn that the hard way with the front?
I recall seeing somewhere mike saying synchro mesh worked well in the transfercase
I recall seeing somewhere mike saying synchro mesh worked well in the transfercase
I run my stuff a hair on the high side and made my front diff full time for a short time, long runs on the interstate it would spit a little oil out the breather
I ran it just to prove a point. Never did a pump rib or anything.
I had 5w40 full syn Mobil in my transfer and it's got good old 80-90 in at now as well with 7,500 miles on it so far
Good to know man. I've been down my share of rig roads in wyoming, colorado, utah, and nodak...so I'm sure if it held up the average Joe would be ok but that's an assumption
My front differential is currently out of the truck.. waiting on me to swap 4.56 gears into it.. probably run 80/90 in it as 95% of the time they(customer)don't need the load that bad, that I have to run 4x4 on the highway to get there..
man that truck looks great in that color and wheels. she looks good working too!:thumb:
Thank you! I missed my old lmm in that color so I went back to it. I guess I started to seat up the rings today, last boat I hauled was pushing 15k plus the trailer. Nothing like putting them to work with 1200 miles on the clock...:rofl:
12.5yrs in.. up for Chief.. I'm not going anywhere.. too late for LDO, but plan is to make Chief, and go Warrant.
We are heading to Haiti right now for Humanitarian aid, and disaster relief.
There goes my vacation days, and my built Allison trans I was getting installed during vacation.. UGHHHH
Got told next week in 4 days a five man crew I'm getting put on is expected to frame and set 29 poles. :spit: