ahhwataday

iTrader: (7)

Time to build The 10 bolt. Goin to be a daily driver with less than 450 Hp and not going much higher. Might get down on it every once in a while but not gonna be abbused.

I would like to know good and bad facts, whats best and worse.

I have an Aubun posi unit. Need additive, What kind? What kind of fliud? Name brand and Viscosity please

Also got a good deal on a Torsion. No additive but I have heard ppl using it anyway. I have no idea why but maybe someone could give a good reason.

This is goin in a DD car that is hardy ever beatin and less than 450 HP and will never see the track. So before you cry bitch and complain about the 10 bolt, HOLD YOUR BREATH or typing fingers. I have a 9", and an 8.8. Dont need it in this car. Search sucks, please go away if you are gonna complain aout this thread or what is goin to be built.

If you have any good info on the gear oil please help. Also looking for a TA or similar cover or girdle.

Thanks for looking and help, Roy

~*Updates*~

I will try to keep this up to date, So far;

Recommended Gear Oil:
1x Dino 75-90
1x Lucas 85-140
1x Lucas 75-90
1x "regular" 80-90
1x "regular" 75-90

Lucas is in the lead
More popular weight is 75-90

Not Recommended:
Royal purple with an auburn;
Bad for brass parts inside the unit

FormulaTA327

Thanks for this thread, Ive been searching for a while thru too many different post. Would be nice to have it all in one place. Hopefully usefull info.

LS1Formulation

iTrader: (13)

Here's my experience - I'm about 425 HP at the wheels. Had an Auburn carrier and I split it in half on a launch. Bought a take out Torsen and used that for about 2 years with no issues. Broke a few sets of gears though. With street use, I'd really say it's a toss up. Just know that with a Torsen, if you ever do a one wheel peel, it will KILL it in seconds. An Auburn can handle more abuse than that.

ahhwataday

iTrader: (7)

You have a 6 speed? What kind or gear oil are you using? You still running with the 10 bolt?

01ssreda4

iTrader: (96)

i run the cheap **** dino 75-90 oil in my torsen. no additive needed bc its a gear driven posi with no clutches.

ahhwataday

iTrader: (7)

Cool thanks, Any problems or noise or would you recommend?

ahhwataday

iTrader: (7)

AS far as I know a 10 bolt is only wise if you have an auto and less than 450 hp or a 5/6 speed with 350 or less HP. Any thing higher I would recommend another set up.

LS1Formulation

iTrader: (13)

Yeah, my M6 was a rearend killer. I used 85/140 Lucas in mine, figured the extra viscosity might cushion parts. No longer running the 10 bolt, just had an S60 installed a couple days ago.

sroach20

iTrader: (31)

the best limited slip additive is the **** ford sells. just use regular 80-90 gear oil and you will be fine, i use castrol. for stock components the auburn is better. i just picked up an brand new eaton for $400 and im sticking in some aam gears.

ahhwataday

iTrader: (7)

Thanks guys

Ive heard about the ford additive but dunno why its good

Irocem99

I have a Torsen. I just put in 75-90 Lucas synthetic. It quieted the gears down too.

brians91formula

iTrader: (12)

my GM dealership qouted me 85 dollars just in oil for my rearend fluid flush. WTF?

ahhwataday

iTrader: (7)

daaaaamn. You can do it your self. nothin to it. Just stay tuned, You may find some good info in here. Whats the best and whats causing problems.

I will try to keep this up to date, So far:

1x Dino 75-90
1x Lucas 85-140
1x Lucas 75-90
1x "regular" 80-90

So far more ppl are using Lucas

FormulaTA327

does anyone have any info on the royal purple gear oil

ahhwataday

iTrader: (7)

I have used it. DIdnt have it long enough to post positive or negative. I would like to know as well.

metalmechanic

royal purple is bad for the brass components in the auburn ive read, i use 75/90 synthetic plus 5 ounces of gm additive, thats also what it says in the owners manual, just changed it the second time since ive had the car and the internals were in very good shape, about 1 & 3/4 of oil, just a tad less

ahhwataday

iTrader: (7)

Awesome, Royal purple with auburn=no bueno

Do you have stock rear with torsion and still use the additive and what brand oil you use?

FormulaTA327

So Lucus 75-90 and 1 & 3/4 quarts of oil with no gm additive for a torsion, is that about right. Also, how does the break in period work?

ahhwataday

iTrader: (7)

check out drivetrain.com. If you cant find it call em.

Ive heard lots off different things, such as a heat cycle. Run the car (30 minutes), let it cool, run the car, let it cool, run the car, let it cool.

speed_demon24

iTrader: (6)

http://www.bobistheoilguy.com/images/lucas/lucas.htm