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Rear differential

Old 09-18-18, 08:11 PM
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RSGS430
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Default Rear differential

I just recently today had my rear differential go out on my gs430 it started making popping noise when i put it in reverse for a couple weeks but today when i went to take off it popped hard and just wouldnt move and it made a weird whinning noise like the trans was spinning but not grabbing anything.....is it a hard to remove and replace? Can i use one from an ls or sc since its the same engine and trans ? Is there anything new i need to buy in order to install a used one from the junkyard ?.....thanks in advanced this is stressfull
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Old 09-18-18, 09:23 PM
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LexLova
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Yes. Just pop a used one in. The 430 is a 3.26 300 is 3.92. They all will work. Will make your car pull / rev harder & higher . Top speed will decrese by 10 mph or so
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Old 09-19-18, 10:32 AM
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Originally Posted by LexLova View Post
Yes. Just pop a used one in. The 430 is a 3.26 300 is 3.92. They all will work. Will make your car pull / rev harder & higher . Top speed will decrese by 10 mph or so
So i can put a 03 LS430 differential someone at a junk yard is telling me that it wont fit but idk why if its the same engine and trans setting
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Old 09-19-18, 11:17 AM
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Do some research but it looks like the LS430 diff will bolt up from a quick google search. You will need to change the diff flange if you use a GS300 or SC300 diff. They are slightly smaller than the 400, 430 or aristo flanges
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Old 09-19-18, 12:57 PM
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LS430 should bolt right up no modifications needed.
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Old 09-19-18, 07:17 PM
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Originally Posted by 99SC42 View Post
LS430 should bolt right up no modifications needed.
Thanks thats good news
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Old 09-19-18, 07:22 PM
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Originally Posted by Muffinizer View Post
Do some research but it looks like the LS430 diff will bolt up from a quick google search. You will need to change the diff flange if you use a GS300 or SC300 diff. They are slightly smaller than the 400, 430 or aristo flanges
Dont think i will be using a 300 diff as of now mayb later in the future.... ive herd it is a good swap thou from many people...thanks for the info greatly appreciated
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Old 09-20-18, 07:14 AM
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Not a problem. I have a GS400 with an aristo diff in it and its way faster than the stock diff
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Old 09-20-18, 07:30 AM
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Originally Posted by Muffinizer View Post
Not a problem. I have a GS400 with an aristo diff in it and its way faster than the stock diff
😂

i have aristo w GS400 diff plus a torsen . I loooooove the 3.26 wind up with the bpu boost and valve body mod. Factor 20ís , car does like 60 in first gear
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