What brand and type gear lube do "yall" suggest? It was changed at the stealership around 20K or so. It has the locking differential. How many quarts for the rear and front also?
For the rear axle, I changed the grape juice at 500 miles to Mobil 1 75w-90. I haven't changed the front axle lube.
The owner's manual will give capacities.
'03 Chev 2500HD LT 4WD D/A CC SB
'03 Desert Fox 21SW Toy Hauler
'02 HD Road King, CRF230, TTR125, 2-DR125's, CRF100, PW80
16,400 GCVW
Dave/Jenn/kids
All work and no play makes Dave a dull boy
Another vote for Mobile1 - Go to Dieselplace.com and look for an oil comparison in the fluids section
From someplace in SE Wisconsin
2006 Silverado 2500 Ext-cab / reg box / D/A
2006 Jayco Eagle 325BHS
2001 Goldwing, Cyclemate trailer and a tent (to remind me why we have the Jayco)
1999 BMW 1200C (007 bike) too cool to part with
Cox89XJ wrote: What brand and type gear lube do "yall" suggest? It was changed at the stealership around 20K or so. It has the locking differential. How many quarts for the rear and front also?
The GM Gov-lock (G80) does not use clutches, so no friction modifiers or additives are necessary. Mobil 1 75W90 or 75W140 (if you tow really heavy) should work just fine.
I've used both Mobil 1 75W-90 and Redline 75W-140, which I run now, in the rear. I have Redlin 75W-90 in the front. Both brands, among others are excellent.
Make sure you check the manual for the fluid spec, as most OEMs today have
special formulations. I think to get folks to 'have to' go to the OEM parts
counter, but that is just my thoughts on that. Most after market suppliers
will over time, match those spec's but that may take a couple years or so.
The Eaton G80 (GM option code is also G80) locker does use 'clutches' as the
locking mechanism. Clutches but they do not 'slip', much.
Seems no one really wants to use the hot link, so here's the text below.
It is a locker, the manufacturer says so.
======================================================================
Availability
¨ Standard Equipment on Dual Wheel 3500 Series trucks.
¨ Optional Equipment (G80 Order Code) on all GM two-wheel and four-wheel drive light trucks and sport utilities.
Benefits
¨ Improved traction differentiates the vehicle relative to other rear wheel and four-wheel drive vehicles on the market.
¨ Functions as a limited slip differential during normal driving conditions; provides full axle lock when needed.
¨ Maintenance free; requires no lube additives.
¨ Enhanced towing and off-road performance.
¨ Patented carbon friction disc technology enhances performance and durability while reducing warranty claims.
Principles of Operation
¨ Wheel speed difference (left to right) in excess of 100 RPM will cause a flyweight mechanism to open and catch a latching bracket.
¨ The stopped flyweight will trigger a self-energizing clutch system, which results in the cam plate ramping against a side gear.
¨ Ramping increases until both axles turn at the same speed (full lock), which prevents further wheel slip.
¨ At speeds above 20MPH, the latching bracket swings away from the governor and prevents lockup from occurring.
Technical Specifications
¨ Automatic locking takes place within a fraction of a second, so smoothly that it is unnoticed by the average driver.
¨ Unlocking occurs automatically, once the need for improved traction is gone, and is unnoticeable to the average driver.
¨ Compatible with anti-lock brake systems.
-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
Sold the boat (looking for another): Trophy with twin 150's...
51 cylinders in household, what's yours?...
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