75w-140 Syn Gear Lube?

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How about Schaeffer's #268 or #740? Salesrep would be better suited to tell you if they're the right product for your app. They're slightly higher viscosity on the low-temp end (more like an 80W140), but DANG they're tough lubes. They'll blow M1 or even Amsoil into the weeds for 'heavy lifting,' IMO. If you just drive the pickup around like a car (like most people do), then that's not such a big deal.
 
Originally Posted By: mechtech2
Right.
Many limited slip differentials use actual clutch discs to provide grab to the 'other' side when turning or wheel spinning.
The friction modifier is used to actually make it slip MORE, to alleviate binding and sticking which gives erratic and clunky operation.


Yes. ..and just in case I stated it unclearly.

Conventional w/slippery stuff ...some hopping and I can actually get a chirp with my 4 banger if I'm not going straight on dry pavement.

Synthetic w/o friction modifier ...less hopping ..no clunks ..no ratcheting around turns ..figure "8's" smoother.
 
Well I'm either running the Motorcraft, Mobil 1 or Valvoline Syn. The valvoline actually says it meets the Ford spec, and no additive is required for my ford LSD spec. One of them 3. Down to price and availability. They all meet GL-5, are all synthetic 75-140. The only difference is the Mobil 1 and valvoline already have the friction modifier in the lube. with Motorcraft you have to add it separately. That's the biggest difference I see. Along with price.
 
yup, 10-4 I know.... Either way it meets SM/CJ-4. and it's very cheap and available everywhere. As of right now Mobil 1 75/140 is the ticket until I can shop around and see what other places have for what price.
 
Shoot.. you could get Amsoil SVG for about the same price, maybe less than the dealer's price! No brainer...even if you did have to mail order...
 
I've always had great luck with Valvoline Gear lubes. Never broke a MT or Diff. and I beat the [censored] out of them. I have broken one diff with Mobil 1 75-90. Stripped the teeth off the front diff on my 94 4runner with 35" M/T's on a hill climb. Looking back... I should have opted for 75/140. Not sayin M1 had anything to do with the breakage.. just my history. I'm going to try and find the Valvoline locally for a good price.
 
Originally Posted By: Toy4x4runner
I've always had great luck with Valvoline Gear lubes. Never broke a MT or Diff. and I beat the [censored] out of them. I have broken one diff with Mobil 1 75-90. Stripped the teeth off the front diff on my 94 4runner with 35" M/T's on a hill climb. Looking back... I should have opted for 75/140. Not sayin M1 had anything to do with the breakage.. just my history. I'm going to try and find the Valvoline locally for a good price.

Good luck.

The last time I bought Valvoline 75w140, it cost $16 per quart.
However, sometimes NAPA has a sale $11 per quart of 75w140 Valvoline.
 
That price for sythetic 75W-140 gear oil is high. I have a 2002 V6 Ford Explorer with a limited slip rear diff that also calls for 75W-140 with the limited slip additive.

I used Amsoil synthetic Severe Gear 75W-140 oil and put in 4 oz of the differential friction modifier as my diff would chatter without it.

The Amsoil has been fine in the rear diff so far and my diff is quite and smooth.

Rumple

Originally Posted By: Toy4x4runner
Ford dealer wants $21.04/qt for it's lube!!!! OMG.
 
Use Amsoil Severe Gear, for me it was hard to find a consistent brand and location to purchase gear lube (it is much different then motor oil), and when i did find an Auto Parts Shop I noticed the large turn around they had on Amsoil Gear Lube and I was told that many shops in the area demand it and will not use any thing else, good enough for me.

Do you live by a Walmart? my local one has excellent prices on Motor Craft Oil & Oil Filters.
 
Originally Posted By: Petty
Use Amsoil Severe Gear, for me it was hard to find a consistent brand and location to purchase gear lube (it is much different then motor oil), and when i did find an Auto Parts Shop I noticed the large turn around they had on Amsoil Gear Lube and I was told that many shops in the area demand it and will not use any thing else, good enough for me.

Do you live by a Walmart? my local one has excellent prices on Motor Craft Oil & Oil Filters.

I live near a Wal-Mart. They sell Motorcraft engine oil and oil filters, but no other Motorcraft products.
 
Man, the prices you guys pay for gear oil blows me away. I can get RoyalPurple MaxGear for $9-$11 a bottle depending on what warehouse my speed shop gets it at that day. The RP MaxGear 75W-140 is an excellent product. I ran it in my 04 Dodge Ram and will run it in my new 08 Ram.

Also, screw the Amsoil white papers. That is not a dis on Amsoil as they make very good products but rather I am sick to death of that test report being used as the holy bible of gear oils now. Enough already. Wow. base your opinion on your own use or results from 100% independant sources not from the competitors claims.

Oh yeah, MaxGear already has the friction modifier in it. Just another option for you to look into. I can't believe you guys are paying $16-$25 for a bottle of gear lube.
crazy2.gif
 
I think the Royal Purple 75w-140 is 12.99/quart at most parts stores, if you don't have a connection. It's good stuff. Mobil 1 would be my second choice and Amsoil would be my third.
 
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10-4 guys. I have to spend a few hours driving around town to see what is available at what price.... and I need to order my 08 Diff cover!!
 
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Man, the prices you guys pay for gear oil blows me away.


Not uncommon at all. While I'm trying to give the best price to every customer I have, I'm already at par with retail around here. Before getting the sponsorship, I wanted to change my transmission fluid (AX15 5 speed). It spec's GL3 fluid. I went to NAPA and they sell GL4 MT PZ for $21/quart. The dealer GL3 synthetic was only $14. AA sells M1 75w-90 for $17/quart. If you can manage economical ordering, Amsoil is very competitive.
 
Originally Posted By: 94supraonchrome
I think the Royal Purple 75w-140 is 12.99/quart at most parts stores, if you don't have a connection. It's good stuff. Mobil 1 would be my second choice and Amsoil would be my third.


Gee i guess i lucked out.
I got 3 quarts of RP 75-140 for my Cherokee from a local dealer thats clearing out the RP line.
Only paid $4.77 a quart! hee hee! ;-)
 
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