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Silverado Differentials---Not on Maintenance Sche? #4518243
09/16/17 10:31 PM
09/16/17 10:31 PM
Joined: Sep 2011
Posts: 406
IL
lukejo Offline OP
lukejo  Offline OP
Joined: Sep 2011
Posts: 406
IL
Transmission fluid,filter, and transfer case are of course listed at intervals on the maintenance schedule. However, neither differential is listed...even under severe duty out to 150,000 miles?


'05 Corolla 285k
'09 Silverado 2500HD 6.0, 95k
'12 Camry LE 4cyl, 155k

Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518259
09/16/17 11:04 PM
09/16/17 11:04 PM
Joined: Aug 2008
Posts: 3,167
USA
Reddy45 Offline
Reddy45  Offline
Joined: Aug 2008
Posts: 3,167
USA
Diff fluid should be changed out as needed. Every 60k miles for a leisurely driver and every 30k for anyone who tows/hauls/offroads.

Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518263
09/16/17 11:19 PM
09/16/17 11:19 PM
Joined: Sep 2014
Posts: 1,446
Toronto Canada
WobblyElvis Offline
WobblyElvis  Offline
Joined: Sep 2014
Posts: 1,446
Toronto Canada
If it is necessary to change the differential fluid, it will be spelled out in the owner's manual/maintenance schedule.

Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518269
09/16/17 11:42 PM
09/16/17 11:42 PM
Joined: Jan 2006
Posts: 2,434
Michigan
stockrex Offline
stockrex  Offline
Joined: Jan 2006
Posts: 2,434
Michigan
I changed mine at 16k and 9 years made a huge difference,
drop the oil and put in a some syn, tell us how it is.


07Ridgeline:33k,08Dmax:14k,10Fit:40k:90Toyota1Ton:88k
Oil Whisperer!*Fear the DINO*
Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518273
09/16/17 11:56 PM
09/16/17 11:56 PM
Joined: Oct 2014
Posts: 3,902
Utah
CKN Offline
CKN  Offline
Joined: Oct 2014
Posts: 3,902
Utah
Originally Posted By: lukejo
Transmission fluid,filter, and transfer case are of course listed at intervals on the maintenance schedule. However, neither differential is listed...even under severe duty out to 150,000 miles?



If you asking about your Siverado-they come from the factory with synthetic grease. I changed mine out on my Silverado at 50,000-miles-and it didn't look that bad. A full half of those miles was towing my 5,500 pound travel trailer. The early change out-as standard operating procedure on BITOG is a money flush and not needed-IMHO. However-if your at 90K and it hasn't been done now is the time.

Last edited by CKN; 09/16/17 11:58 PM.
Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518274
09/17/17 12:01 AM
09/17/17 12:01 AM
Joined: Sep 2010
Posts: 7,003
Texas
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 7,003
Texas
AAM been in the tequila down south of the border?

Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518323
09/17/17 05:44 AM
09/17/17 05:44 AM
Joined: Feb 2013
Posts: 3,226
Central Virginia
Silverado12 Online content
Silverado12  Online Content
Joined: Feb 2013
Posts: 3,226
Central Virginia
I had an unusual experience when I changed my 2012 Silverado rear oil with 25K miles. It came out looking almost black and looked like it should have been changed sooner. I used non-syn 80W-90 to replace the original oil. Truck has the G-80 locking differential.

Last edited by Silverado12; 09/17/17 05:44 AM.

12 Chevy Silverado ext. cab LS, 2WD 4.3 auto
18 Mustang GT 5.0 auto
07 Harley Dyna Street Bob 96 c.i. 6 sp.
00 Mustang GT auto
Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518328
09/17/17 05:58 AM
09/17/17 05:58 AM
Joined: Dec 2002
Posts: 42,088
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,088
New Jersey
My 98 S-10 had an early change listed only for the lsd. Was like 7500 miles.

I'm sure with sun fluids and all the intent for lifetime stuff, they don't give a number. Par for the course.

Personally I like the 7500 and then between 36 and 60k or by time...

Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518337
09/17/17 06:30 AM
09/17/17 06:30 AM
Joined: Mar 2011
Posts: 2,197
Indiana
Indydriver Offline
Indydriver  Offline
Joined: Mar 2011
Posts: 2,197
Indiana
45,000 for my 420 hp 2014 Chevy Camaro.


2014 Camaro 2SS/RS LS3 Vert 14,000 M1
2012 Sienna 79,000 M1
2007 Tahoe 140,000 PP

Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518341
09/17/17 06:41 AM
09/17/17 06:41 AM
Joined: Sep 2015
Posts: 2,260
Malaysia
zeng Offline
zeng  Offline
Joined: Sep 2015
Posts: 2,260
Malaysia
Originally Posted By: lukejo
Transmission fluid,filter, and transfer case are of course listed at intervals on the maintenance schedule. However, neither differential is listed...even under severe duty out to 150,000 miles?

Manufacturers know best ??
Oh no, I wouldn't trust one.

Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518379
09/17/17 07:58 AM
09/17/17 07:58 AM
Joined: Jan 2017
Posts: 174
Michigan
64bawagon Offline
64bawagon  Offline
Joined: Jan 2017
Posts: 174
Michigan
They used to be 5000 miles initial for break in ? Not sure what it is now since I haven't bought a truck in over 12 yrs.


05 Duramax Chevy(SOLD), 64 Chevy wagon, 10 Jeep Wrangler, 17 Equinox (rental), 18 Silverado 1/2 ton
Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518402
09/17/17 08:37 AM
09/17/17 08:37 AM
Joined: Nov 2009
Posts: 4,943
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 4,943
Houston, Texas
Supposedly the 11.5 AAM will burn the paint off the diff cover towing heavy. Mine still looks new, so I don't know. I don't tow heavy though


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: Silverado Differentials---Not on Maintenance Sche? [Re: lukejo] #4518467
09/17/17 10:21 AM
09/17/17 10:21 AM
Joined: Nov 2006
Posts: 168
massachusetts
wog Offline
wog  Offline
Joined: Nov 2006
Posts: 168
massachusetts
Did my differential at 105k and again at 205k no issues except for pin hole in cover at 205. No noise or clunking. Quiet grin

Re: Silverado Differentials---Not on Maintenance Sche? [Re: zeng] #4519073
09/17/17 11:06 PM
09/17/17 11:06 PM
Joined: Oct 2014
Posts: 3,902
Utah
CKN Offline
CKN  Offline
Joined: Oct 2014
Posts: 3,902
Utah
Originally Posted By: zeng
Originally Posted By: lukejo
Transmission fluid,filter, and transfer case are of course listed at intervals on the maintenance schedule. However, neither differential is listed...even under severe duty out to 150,000 miles?

Manufacturers know best ??
Oh no, I wouldn't trust one.



Your right...the "shade tree" mechanics on BITOG know so much more than the guys who design them and put them together......

Re: Silverado Differentials---Not on Maintenance Sche? [Re: CKN] #4519078
09/17/17 11:18 PM
09/17/17 11:18 PM
Joined: Sep 2011
Posts: 406
IL
lukejo Offline OP
lukejo  Offline OP
Joined: Sep 2011
Posts: 406
IL
Originally Posted By: CKN
Originally Posted By: zeng
Originally Posted By: lukejo
Transmission fluid,filter, and transfer case are of course listed at intervals on the maintenance schedule. However, neither differential is listed...even under severe duty out to 150,000 miles?

Manufacturers know best ??
Oh no, I wouldn't trust one.



Your right...the "shade tree" mechanics on BITOG know so much more than the guys who design them and put them together......

Funny--both of you--and you each represent one side of my brain on this. I tend to lean towards over-maintaining, thanks to no small part from this forum. On the flip side, so many on here now say it's safe to trust the OLM for your OCI's on most engines...even though that is much longer than tradition OCI's. Yes, motor oil is much better now, but so is the diff fluid that GM uses. So should I trust the OLM, but assume they really got the differential maintenance wrong? Kind of a rhetorical question, but that's what plays out in my mind when wanting to do more/sooner than the manufacturer recommends.

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