Rearend???

h8z2luze · 08-23-2006, 07:11 AM

I was just wondering what kind of rearend is in the mk3 supras? Is it limited slip or posi or neither? Anyone know the gear ratios???? Thanks.

suprasforlife · 08-23-2006, 10:06 AM

There are several different gear ratio's and some have lsd rearends and others are open(no lsd, no posi). The way you tell is by the code that is on the tag in the drvers door jam. Look at the code that begins with G.
It should be something like G305.
The G is for the diff size so G=8inch diff(all Supras have the 8inch)
The 1st two numbers are the ratio.
They are as follows.
28=4.3
30=3.9
31=3.7
The last number tells if it is open or lsd. If it is an odd number it is lsd, if it is even, it is open.
So G305 is an 8 inch rearend housing with 3.9 gear ratio and is lsd.
Hope this answers your question. I have never heard of a Supra with a true posi in it, would take away from the cars cornering ability to much. There might be more ratio's but these are all I know of.

newbsupra · 08-23-2006, 10:29 PM

i dont have a code on my car? 86.5 NA

damdog05 · 08-23-2006, 10:44 PM

my 86.5 has an lsd, but it doesnt mean yours does. take a look at your rear end. mine said right on it somewhere that it was lsd.

newbsupra · 08-23-2006, 10:47 PM

well, when i spin around corners, or squeel the tires, there is two tire marks, which would probibly mean LSD?

suprasforlife · 08-23-2006, 11:47 PM

Yes 2 tires spinning is lsd, and the tag is under your hood on the firewall, I forgot that they did not put the stickers in until 1989, it's a big metal tag, you can't miss it.

08-23-2006, 07:11 AM	#1
h8z2luze 12psi boost Join Date: May 2006 Location: Nor*Cal Posts: 338	Rearend??? I was just wondering what kind of rearend is in the mk3 supras? Is it limited slip or posi or neither? Anyone know the gear ratios???? Thanks. __________________ 1989 Supra 7MGE MK3 5-speed project... http://www.cardomain.com/ride/2385505

08-23-2006, 10:44 PM	#4
damdog05 12psi boost Join Date: Apr 2006 Location: Georgia Posts: 250	my 86.5 has an lsd, but it doesnt mean yours does. take a look at your rear end. mine said right on it somewhere that it was lsd. __________________ My cars: 85 Trans Am- Ehhh- Gone 83 Rx7- Much Better- Gone 86.5 Supra- Love- Not Gone

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08-23-2006, 10:06 AM	#2
suprasforlife 3" Exhaust Join Date: Jun 2006 Location: Montana Posts: 71	There are several different gear ratio's and some have lsd rearends and others are open(no lsd, no posi). The way you tell is by the code that is on the tag in the drvers door jam. Look at the code that begins with G. It should be something like G305. The G is for the diff size so G=8inch diff(all Supras have the 8inch) The 1st two numbers are the ratio. They are as follows. 28=4.3 30=3.9 31=3.7 The last number tells if it is open or lsd. If it is an odd number it is lsd, if it is even, it is open. So G305 is an 8 inch rearend housing with 3.9 gear ratio and is lsd. Hope this answers your question. I have never heard of a Supra with a true posi in it, would take away from the cars cornering ability to much. There might be more ratio's but these are all I know of.

08-23-2006, 10:29 PM	#3
newbsupra 3" Exhaust Join Date: May 2006 Location: Sask/Canada Posts: 238	i dont have a code on my car? 86.5 NA

08-23-2006, 10:47 PM	#5
newbsupra 3" Exhaust Join Date: May 2006 Location: Sask/Canada Posts: 238	well, when i spin around corners, or squeel the tires, there is two tire marks, which would probibly mean LSD?

08-23-2006, 11:47 PM	#6
suprasforlife 3" Exhaust Join Date: Jun 2006 Location: Montana Posts: 71	Yes 2 tires spinning is lsd, and the tag is under your hood on the firewall, I forgot that they did not put the stickers in until 1989, it's a big metal tag, you can't miss it.