Quick newber question on the different differentals

mdr40z

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Mar 31, 2005
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Turbo Habanero;1402142 said:
So higher the ratio the better accel you get? The lower the better top end/gas mileage you get?

yes but as a general rule, on most cars, an auto is not very happy with a standard rear and vise versa. Ours are a little closer ratio, only like 4.8% diff between them
 

Turbo Habanero

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mdr40z;1402192 said:
yes but as a general rule, on most cars, an auto is not very happy with a standard rear and vise versa. Ours are a little closer ratio, only like 4.8% diff between them

So its not enough to be noticeable?
 

PureDrifter

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Jeff Lange;1402169 said:
The factory MA70 LSD is a clutch type LSD :aigo:

But you are correct the TRD and other aftermarket LSD's will be more aggressive than the factory LSD, but you will sacrifice some driveability in the name of a better performing LSD. (Noise while turning at low speeds, possibly small amount of wheel skip).

Jeff
how many junkyard MA70 LSDs do you see are "properly functioning"? :nono:

i'll venture to say that VERY VERY few mk3 supra's had their LSD rear end clutch plates replaced, hell most have never even had their fluid changed :cry: plus all the factory LSD toyota ever made (afaik) were 1-way or 1.5way (rumor), seeing as how most LSDs for rwd cars are 1.5-2way with a much more aggressive setup, its understandable than some road manners will be lost.


being NA, i'll stick to my 4.30 and look for a factory LSD since for now, it'll work for what i need it for. suspension is my priority after getting my white lump running, i'll save the rearend for next winter :) UNLESS of course an oem 4.30 LSD finds its ways into my hands...

oh yeah, random tidbit, pulled my head off today (first timer, bought the car BHG), and had a problem with fuel constantly leaking off the lower union bolt (tried damn near everything) and then realized that one of my spare head bolts (long story) just so happened to fit into the fitting perfectly and kept it from leaking :naughty:
 

Mondo

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May 26, 2009
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PureDrifter;1402274 said:
how many junkyard MA70 LSDs do you see are "properly functioning"? :nono:

i'll venture to say that VERY VERY few mk3 supra's had their LSD rear end clutch plates replaced, hell most have never even had their fluid changed :cry: plus all the factory LSD toyota ever made (afaik) were 1-way or 1.5way (rumor), seeing as how most LSDs for rwd cars are 1.5-2way with a much more aggressive setup, its understandable than some road manners will be lost.


being NA, i'll stick to my 4.30 and look for a factory LSD since for now, it'll work for what i need it for. suspension is my priority after getting my white lump running, i'll save the rearend for next winter :) UNLESS of course an oem 4.30 LSD finds its ways into my hands...

oh yeah, random tidbit, pulled my head off today (first timer, bought the car BHG), and had a problem with fuel constantly leaking off the lower union bolt (tried damn near everything) and then realized that one of my spare head bolts (long story) just so happened to fit into the fitting perfectly and kept it from leaking :naughty:

Off Topic Reply:

Take your gas cap off. Your fuel system is still pressurized.
 

Turbo Habanero

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Quick tip....

Check The Manufactures plate in the engine compartment if the last digit is 3 or 5 on the axle code its LSD.

And you can figure out what ratio by year.

I.E
87-88 3.91
89-92 3.73
86.5-92 N/A 4.30
 

Koenigturbo

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Oct 4, 2006
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Turbo Habanero;1406319 said:
Quick tip....

Check The Manufactures plate in the engine compartment if the last digit is 3 or 5 on the axle code its LSD.

And you can figure out what ratio by year.

I.E
87-88 3.91
89-92 3.73
86.5-92 N/A 4.30

Good to know>>>>>