Changed my rear differential oil and ? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

skar · 06-04-2012, 10:14 AM

Changed my rear differential oil 1 32oz GM Synthetic gear oil and 1 GM bottle of modifier . Still looked as not full ? so I added a couple oz of ford modifier I had and that seem to top it off. Now I take it adding a little more off brand modifier (friction fighter) will not hurt it.

garcmol · 06-04-2012, 02:45 PM

Hmmm, the rear diff only holds 32oz (1qt). Where'd it all go???? I just did mine as well. I put 3 oz of friction modifier in and pumped in just shy of a qt and it began to leak out the top hole.

The GM friction modifier bottle holds 4 oz and the manual only calls for 2.5 oz to be added. How much "extra" are we talking here? I really don't see it hurting it, but just curious how much "extra" you put in there, lol.

skar · 06-04-2012, 06:45 PM

32 oz Gm black bottle gear oil. And the small modifier . I spilled ? 2 to 3 oz at the most .

and then maybe 3 oz of the ford modifier . I did not want to by more gear oil. I had the
Ford stuf laying around. So I should be good. They all stink also.

skar · 06-04-2012, 06:48 PM

I did a good drain job lowering left wheel and the other still on jack stands.

Avenging Orange · 06-05-2012, 01:24 AM

You'll be fine

Mr_Draco · 06-05-2012, 09:35 AM

Quote:

Originally Posted by skar

I did a good drain job lowering left wheel and the other still on jack stands.

If this is the case then you'll be fine however in the future this is completely unnecessary.

willhe64 · 06-05-2012, 10:19 AM

Too much modifier can affect how the posi works. You may not be getting the lock up you should. I put the minimum in and if it still chatters add a bit until it quits.

skar · 06-05-2012, 02:09 PM

OK I will re do it to make sure . Now one bottle of GM synthetic gear lube 32 oz
and one bottle of modifier (or 2.5 oz)

skar · 06-05-2012, 06:40 PM

Drained and refilled with GM modifier (3/4 of a bottle ) and almost a 32 of GM gear lube.
Dealer gave me capacity sheet.
V8 all .079 quart friction modifier =2.528 oz is my guess.
.975 quart base lubricant (31.? oz)

Now I can sleep at night.

Marchino · 09-17-2012, 05:11 PM

Hello, I changed my diff.fluid last Saturday (14k miles).

Few questions.

1) Quantity

I used a manual pump with a long rubber pipe going into the filling hole. I drained all the fluid and then I mixed 1 quart of GM (AC delco) oil with 2.5 oz of friction modifier.
After squezzing the pump all the way down, I couldnt pump the fluid left in the pipe into the hole so in the end I didn't put in about 2 ounces of fluid. Should I be worried? I checked the level by putting into the hole the tip of a small iron stick and the fluid was there. I didn't see any fluid coming out while filling the oil housing though. The car was on a perfectly flat level.
Do you think I' better buy another quart of oil and put in the missing 2 ounces?

2) Plugs
are the draining plug and the filling plug identical?

Tks!

Mr_Draco · 09-17-2012, 05:43 PM

Naw I wouldn't worry about it the last 2 oz. The V8 differential holds almost exactly 1 quart. If you mix 1 quart of lube plus 2.5 oz of the modifier then you should have 2.5 oz left over when you feel it completely full.

I am pretty sure the plugs are identical. If they wasn't you would have noticed when you went to put them back in.

06-04-2012, 10:14 AM	#1
skar Drives: 2010 2SSRS headers/CAI/tune/corsa, Join Date: May 2010 Location: Commerce twp Michigan Posts: 1,413	Changed my rear differential oil and ? Changed my rear differential oil 1 32oz GM Synthetic gear oil and 1 GM bottle of modifier . Still looked as not full ? so I added a couple oz of ford modifier I had and that seem to top it off. Now I take it adding a little more off brand modifier (friction fighter) will not hurt it. __________________ Stainless works headers/cats Roto fab CAI / Corsa install and tune Livernois TSW Nuburgring 9 &10" x 20 on Invos (315 & 275 ) JL Audio XD400/4 amp Pfadt trailing arms & tie rods sway bars. pedders street 1 package. ,Hurst short throw shifter With bronze bushings .

06-04-2012, 02:45 PM	#2
garcmol Drives: 10 1LT SIM; 91 B4C sleeper Z Join Date: Aug 2009 Location: Ft. Mitchell, Alabama Posts: 7,198	Hmmm, the rear diff only holds 32oz (1qt). Where'd it all go???? I just did mine as well. I put 3 oz of friction modifier in and pumped in just shy of a qt and it began to leak out the top hole. The GM friction modifier bottle holds 4 oz and the manual only calls for 2.5 oz to be added. How much "extra" are we talking here? I really don't see it hurting it, but just curious how much "extra" you put in there, lol. __________________ Pedders Pace Car Package, Injen CAI, Flowmaster AT, AAC Lighting, ZL1 fascia/skirts, RKSport Ram Air hood, vented fenders, painted stripes (Gary's Customz), Honor and Valor badged (Thank you, John)

06-04-2012, 06:45 PM	#3
skar Drives: 2010 2SSRS headers/CAI/tune/corsa, Join Date: May 2010 Location: Commerce twp Michigan Posts: 1,413	32 oz Gm black bottle gear oil. And the small modifier . I spilled ? 2 to 3 oz at the most . and then maybe 3 oz of the ford modifier . I did not want to by more gear oil. I had the Ford stuf laying around. So I should be good. They all stink also. __________________ Stainless works headers/cats Roto fab CAI / Corsa install and tune Livernois TSW Nuburgring 9 &10" x 20 on Invos (315 & 275 ) JL Audio XD400/4 amp Pfadt trailing arms & tie rods sway bars. pedders street 1 package. ,Hurst short throw shifter With bronze bushings .

06-04-2012, 06:48 PM	#4
skar Drives: 2010 2SSRS headers/CAI/tune/corsa, Join Date: May 2010 Location: Commerce twp Michigan Posts: 1,413	I did a good drain job lowering left wheel and the other still on jack stands. __________________ Stainless works headers/cats Roto fab CAI / Corsa install and tune Livernois TSW Nuburgring 9 &10" x 20 on Invos (315 & 275 ) JL Audio XD400/4 amp Pfadt trailing arms & tie rods sway bars. pedders street 1 package. ,Hurst short throw shifter With bronze bushings .

06-05-2012, 01:24 AM	#5
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	You'll be fine __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

06-05-2012, 10:19 AM	#7
willhe64 Drives: 2012 45th Vert, 2011 4x4, 9sec Vega Join Date: Mar 2012 Location: Canada Posts: 2,188	Too much modifier can affect how the posi works. You may not be getting the lock up you should. I put the minimum in and if it still chatters add a bit until it quits.

06-05-2012, 02:09 PM	#8
skar Drives: 2010 2SSRS headers/CAI/tune/corsa, Join Date: May 2010 Location: Commerce twp Michigan Posts: 1,413	OK I will re do it to make sure . Now one bottle of GM synthetic gear lube 32 oz and one bottle of modifier (or 2.5 oz) __________________ Stainless works headers/cats Roto fab CAI / Corsa install and tune Livernois TSW Nuburgring 9 &10" x 20 on Invos (315 & 275 ) JL Audio XD400/4 amp Pfadt trailing arms & tie rods sway bars. pedders street 1 package. ,Hurst short throw shifter With bronze bushings .

06-05-2012, 06:40 PM	#9
skar Drives: 2010 2SSRS headers/CAI/tune/corsa, Join Date: May 2010 Location: Commerce twp Michigan Posts: 1,413	Drained and refilled with GM modifier (3/4 of a bottle ) and almost a 32 of GM gear lube. Dealer gave me capacity sheet. V8 all .079 quart friction modifier =2.528 oz is my guess. .975 quart base lubricant (31.? oz) Now I can sleep at night. __________________ Stainless works headers/cats Roto fab CAI / Corsa install and tune Livernois TSW Nuburgring 9 &10" x 20 on Invos (315 & 275 ) JL Audio XD400/4 amp Pfadt trailing arms & tie rods sway bars. pedders street 1 package. ,Hurst short throw shifter With bronze bushings .

09-17-2012, 05:11 PM	#10
Marchino Drives: 2010 Camaro 2SS/RS Join Date: Sep 2011 Location: Dubai & Pietrasanta, Tuscany (Italy) Posts: 125	Quantity Hello, I changed my diff.fluid last Saturday (14k miles). Few questions. 1) Quantity I used a manual pump with a long rubber pipe going into the filling hole. I drained all the fluid and then I mixed 1 quart of GM (AC delco) oil with 2.5 oz of friction modifier. After squezzing the pump all the way down, I couldnt pump the fluid left in the pipe into the hole so in the end I didn't put in about 2 ounces of fluid. Should I be worried? I checked the level by putting into the hole the tip of a small iron stick and the fluid was there. I didn't see any fluid coming out while filling the oil housing though. The car was on a perfectly flat level. Do you think I' better buy another quart of oil and put in the missing 2 ounces? 2) Plugs are the draining plug and the filling plug identical? Tks! __________________ I have witnessed their capacity for courage, and though we are worlds apart, like us, there's more to them than meets the eye.

09-17-2012, 05:43 PM	#11
Mr_Draco Drives: 2SS/RS Join Date: Sep 2008 Location: Western North Carolina Posts: 7,344	Naw I wouldn't worry about it the last 2 oz. The V8 differential holds almost exactly 1 quart. If you mix 1 quart of lube plus 2.5 oz of the modifier then you should have 2.5 oz left over when you feel it completely full. I am pretty sure the plugs are identical. If they wasn't you would have noticed when you went to put them back in.