What is best fulid?
09-30-2009, 01:52 PM
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Car: I have a 91 Camaro RS
Engine: 383 stroker
Transmission: Stock automatic 700r4
Axle/Gears: I have 3.73 Gears with a Eaton posi
What is best fulid?
Im going to be having my 10-bolt rear end rebuilt with bigger gears as well as installing an eaton posi. What I want to know is what is the best brand of oil I can use to break in my rear end after I have it rebuilt and about how much do I need . I have never done this rebuild before and the shop that is doing it wants me to supply all parts and fuilds needed . Any help would be awsome.
Thanks
Thanks
09-30-2009, 06:49 PM
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Car: 1988 Pontiac Firebird
Engine: 5.0 TBI
Transmission: W/C T5
Axle/Gears: 3.08 Posi
Re: What is best fulid?
I Would run the Royal Purple Max Gear oil. Never had any problems using Royal purple in any of my vehicles.
10-02-2009, 09:47 PM
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Car: I have a 91 Camaro RS
Engine: 383 stroker
Transmission: Stock automatic 700r4
Axle/Gears: I have 3.73 Gears with a Eaton posi
Re: What is best fulid?
thanks for the input about how much will i need
12-09-2009, 03:07 PM
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Car: I have a 91 Camaro RS
Engine: 383 stroker
Transmission: Stock automatic 700r4
Axle/Gears: I have 3.73 Gears with a Eaton posi
Re: What is best fulid?
does any body know exactly how much oil i should use and is there a specfic weight of oil for my differentail, i dont want to put all the new parts in then add the wrong fluid and blow a seal or something. Plus i have heard of guys using additives , Will i need any?
12-09-2009, 06:39 PM
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Car: 89 iroc-z
Engine: 305tpi
Transmission: wc-t5
Axle/Gears: 10 bolt 3.08 posi (4 now)
Re: What is best fulid?
personally i'd run 75w90 mobil 1 synthetic ,but any 75w90 gear oil will do the trick.
as for additives i'm not sure if yours requires one ,but i know for a fact mobile 1 has the posi additive already in it, as well as lucas brand gear oil does too (work at a parts store).
Personally i bought mobile 1 and cheap parts store posi additive for my old go lock and it works great for having 210k miles on it.
as for additives i'm not sure if yours requires one ,but i know for a fact mobile 1 has the posi additive already in it, as well as lucas brand gear oil does too (work at a parts store).
Personally i bought mobile 1 and cheap parts store posi additive for my old go lock and it works great for having 210k miles on it.
12-09-2009, 06:43 PM
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Car: 87 IROC-Z28
Engine: 305 TPI-New 355 on the engine stand
Transmission: T56
Axle/Gears: 3.73 Eaton posi-Soon a 9" Ford!
Re: What is best fulid?
I have an eaton posi and I had problems with it ractheting. I called Eaton and they told me NEVER to run a synthetic gear oil with the Eaton unit. They said a standard high quality 75-90 weight with the GM posi additive is preferred. You can run other posi additive they said, but it's not as effective as the GM stuff.
12-09-2009, 10:42 PM
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Car: I have a 91 Camaro RS
Engine: 383 stroker
Transmission: Stock automatic 700r4
Axle/Gears: I have 3.73 Gears with a Eaton posi
Re: What is best fulid?
thanks for the info
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12-10-2009, 06:44 AM
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