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8-3/4 rear end lube with suregrip? #1588028 03/04/14 05:32 PM 03/04/14 05:32 PM
Joined: Jul 2005 Posts: 1,301 Penna 7 70satelliteguy OP pro stock
70satelliteguy OP pro stock 7 Joined: Jul 2005 Posts: 1,301 Penna	Do I need to use a special type with suregrip or just regular stuff?How much do I need to add? It is a new rebuilt 489 unit.

Re: 8-3/4 rear end lube with suregrip? [Re: 70satelliteguy] #1588029 03/04/14 05:36 PM 03/04/14 05:36 PM
Joined: Nov 2007 Posts: 21,825 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,825 Kirkland, Washington	Yes you need friction modifier. 1 bottle of the FORD stuff (its very good) sold at Ford dealerships will do fine.

Re: 8-3/4 rear end lube with suregrip? [Re: Pacnorthcuda] #1588030 03/04/14 08:41 PM 03/04/14 08:41 PM
Joined: Apr 2010 Posts: 4,154 bethlehem pa M mikemee1331 master
mikemee1331 master M Joined: Apr 2010 Posts: 4,154 bethlehem pa	Quote: Yes you need friction modifier. 1 bottle of the FORD stuff (its very good) sold at Ford dealerships will do fine. does this help quiet down a high gear ratio?? i've heard it does...

Re: 8-3/4 rear end lube with suregrip? [Re: mikemee1331] #1588031 03/05/14 12:23 AM 03/05/14 12:23 AM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	Agree the lube of your choice plus sure grip additive. The parts store additive has worked fine in my clutch type. I believe it is GM spec. As far as the gear oil itself, generic parts store 80W90 will work fine for general use. There may be benefits in something more expensive. Plan on sustained high speed running? A 140 rated oil (eg 90-140) may be better for the high temps. Synthetic 75 or 80W140 would be even better. Plan on arctic running? 75W90 synthetic would be better. Racers sometimes run significantly lighter oil to get the last .01 second. I never wanted to rebuild a rear end finding out "how light is too light" so I don't suggest going that route.

Re: 8-3/4 rear end lube with suregrip? [Re: ahy] #1588032 03/05/14 12:48 AM 03/05/14 12:48 AM
Joined: Nov 2009 Posts: 252 Seattle, WA. E edp enthusiast
edp enthusiast E Joined: Nov 2009 Posts: 252 Seattle, WA.	I picked up a suregrip 8 3/4" last year & the guy gave me a bottle of if I remember right - fish oil - of some kind as a rearend additive. Anyone know what that;s about or is it just old school lube methods?

Re: 8-3/4 rear end lube with suregrip? [Re: edp] #1588033 03/05/14 12:50 AM 03/05/14 12:50 AM
Joined: Nov 2007 Posts: 21,825 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,825 Kirkland, Washington	Quote: I picked up a suregrip 8 3/4" last year & the guy gave me a bottle of if I remember right - fish oil - of some kind as a rearend additive. Anyone know what that;s about or is it just old school lube methods? That would be "whale oil". Years ago it was actually derived from whale blubber. Times have changed.

Re: 8-3/4 rear end lube with suregrip? [Re: Pacnorthcuda] #1588034 03/05/14 12:55 AM 03/05/14 12:55 AM
Joined: Nov 2009 Posts: 252 Seattle, WA. E edp enthusiast
edp enthusiast E Joined: Nov 2009 Posts: 252 Seattle, WA.	hey maybe the "whale oil" bottle is now vintage & worth a boat load! I thought it was a little funny but the bottle says something like "rearend additive"

Re: 8-3/4 rear end lube with suregrip? [Re: edp] #1588035 03/05/14 01:21 AM 03/05/14 01:21 AM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	"rearend additive" somebody around here needed that a couple of weeks ago. I am truckless..

Re: 8-3/4 rear end lube with suregrip? [Re: 340SHORTY] #1588036 03/05/14 01:27 AM 03/05/14 01:27 AM
Joined: Jul 2008 Posts: 30,431 Florida STAYcation BeEtLeJuIcE ! The village idiot's idiot
BeEtLeJuIcE ! The village idiot's idiot Joined: Jul 2008 Posts: 30,431 Florida STAYcation	I have had good-luck with Mobil 1 ..... has a mild-scent of the old skunk-oil...

Re: 8-3/4 rear end lube with suregrip? [Re: 70satelliteguy] #1588037 03/05/14 01:46 AM 03/05/14 01:46 AM
Joined: Jan 2003 Posts: 1,069 Washington State 70Duster440 super stock
70Duster440 super stock Joined: Jan 2003 Posts: 1,069 Washington State	Another vote for Ford Friction Modifier.

Re: 8-3/4 rear end lube with suregrip? [Re: 70Duster440] #1588038 03/05/14 01:56 AM 03/05/14 01:56 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	I still have a plastic bottle of that MP "whale oil" sure grip additive live every 24 hour block of time like it's your last day on earth

Re: 8-3/4 rear end lube with suregrip? [Re: RapidRobert] #1588039 03/05/14 03:01 AM 03/05/14 03:01 AM
Joined: Apr 2007 Posts: 4,233 petaluma,ca. u.s.a. west master
west master Joined: Apr 2007 Posts: 4,233 petaluma,ca. u.s.a.	I was wondering how long this stuff lasts. I've got several years and about 12,000 miles on mine. I'm going to replace the oil and ad new additive this spring but was curious if this stuff stops working after a while. If I decide not to change my oil for a while would adding a bottle to the diff. be worth while?

Re: 8-3/4 rear end lube with suregrip? [Re: RapidRobert] #1588040 03/05/14 07:49 AM 03/05/14 07:49 AM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: I still have a plastic bottle of that MP "whale oil" sure grip additive Actually called 'sperm oil'. Animal rights people get it pulled.

Re: 8-3/4 rear end lube with suregrip? [Re: MoparforLife] #1588041 03/05/14 11:45 AM 03/05/14 11:45 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: Actually called 'sperm oil'. Animal rights people get it pulled. Yeah iirc I had heard way back that it was NS1 but I just assumed Ma moved on to a better (or cheaper) product even tho I had heard it worked pretty good. Now we know live every 24 hour block of time like it's your last day on earth

Re: 8-3/4 rear end lube with suregrip? [Re: mikemee1331] #1588042 03/05/14 01:20 PM 03/05/14 01:20 PM
Joined: Sep 2004 Posts: 6,906 IL, Aurora A ademon master
ademon master A Joined: Sep 2004 Posts: 6,906 IL, Aurora	Quote: Quote: Yes you need friction modifier. 1 bottle of the FORD stuff (its very good) sold at Ford dealerships will do fine. does this help quiet down a high gear ratio?? i've heard it does... does nothing for the noise, just used so the clutches will slip on turns so the rear doesn't pop or chatter. In fact the correct way to use it is only use enough to quiet the rear and that's it, to much actually degrades the gear oil quality.

Re: 8-3/4 rear end lube with suregrip? [Re: ademon] #1588043 03/05/14 03:24 PM 03/05/14 03:24 PM
Joined: Jul 2012 Posts: 1,603 Central Ohio B BMChrysler68 Smarter than the average bear? I think not.
BMChrysler68 Smarter than the average bear? I think not. B Joined: Jul 2012 Posts: 1,603 Central Ohio	Quote: does nothing for the noise ... only use enough to quiet the rear and that's it... What? 1968 Plymouth Fury III 2dr FT, 383-4v, 4 speed 1972 AMC Ambassador SST wagon 360-4v, automatic 2014 Challenger R/T Classic 6-speed

Re: 8-3/4 rear end lube with suregrip? [Re: BMChrysler68] #1588044 03/05/14 06:23 PM 03/05/14 06:23 PM
Joined: Sep 2004 Posts: 6,906 IL, Aurora A ademon master
ademon master A Joined: Sep 2004 Posts: 6,906 IL, Aurora	Quote: Quote: does nothing for the noise ... only use enough to quiet the rear and that's it... What? does nothing for a noisy gear, IE if the gear was set up wrong. only use enough to eliminate the clutch poping and chatter any more does not help the gear lube.

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