Bought 3.76 gear ratio differential.. In over my head again
04-01-15, 06:12 AM
#1
Lexus Test Driver
Thread Starter
Bought 3.76 gear ratio differential.. In over my head again
Well I broke down and bought the 3.76 gear ratio differential on eBay. I feel like I'm probably in over my head, so I will be counting on all of you for support; technical support and well as moral support!!
04-01-15, 01:24 PM
#4
Lexus Test Driver
Thread Starter
I'm probably going to do it with my brother on his lift.
I'll follow Greg's write up and advise.
Curious about what bushings and parts I may need to replace?
I'll wait to see what Greg says.
Thanks for your help!
04-01-15, 09:35 PM
#7
Brett -
You'll love this when you get done. Given that you don't track your car and you want to keep comfort I suggest you keep the OEM bushings. With a couple of tricks you should be able to get it done quickly. You will want to use a transmission lift instead of floor jack to handle the differential. You will also need to get a T60 drive for the rear bushing screws but for the one on the passenger side you need to grind the bit down so you can fit a wrench in the space and not have to remove the chassis support. Take a look and get all the tools ready before you start the job.
You'll love this when you get done. Given that you don't track your car and you want to keep comfort I suggest you keep the OEM bushings. With a couple of tricks you should be able to get it done quickly. You will want to use a transmission lift instead of floor jack to handle the differential. You will also need to get a T60 drive for the rear bushing screws but for the one on the passenger side you need to grind the bit down so you can fit a wrench in the space and not have to remove the chassis support. Take a look and get all the tools ready before you start the job.
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04-01-15, 10:03 PM
#8
Brett - Make sure you check the flange size - see the picture I posted. Also you will want to check out the differential you bought. Did the seller show a picture with it open? How many miles? The fast check is to remove the drain plug and drain the old fluid. (You have to remove the fill plug too). The drain plug has a magnet - look for metal filings or larger pieces. The more complete exam means you remove the cover and inspect the gears and their teeth. Use a light to look inside the case for any metal. Clean both gasket surfaces and use the black FIPG from Lexus/Toyota. If you go that route I have a nearly new tube you can use. Let the FIPG dry at leat an hour or two before you put fluid in. I used Amsoil Diff Fluid for severe gear protection. No additive is necessay. Check the specs of the year the diff came put of for the amount of fluid.
04-02-15, 05:45 AM
#9
Lexus Test Driver
Thread Starter
Brett - Make sure you check the flange size - see the picture I posted. Also you will want to check out the differential you bought. Did the seller show a picture with it open? How many miles? The fast check is to remove the drain plug and drain the old fluid. (You have to remove the fill plug too). The drain plug has a magnet - look for metal filings or larger pieces. The more complete exam means you remove the cover and inspect the gears and their teeth. Use a light to look inside the case for any metal. Clean both gasket surfaces and use the black FIPG from Lexus/Toyota. If you go that route I have a nearly new tube you can use. Let the FIPG dry at leat an hour or two before you put fluid in. I used Amsoil Diff Fluid for severe gear protection. No additive is necessay. Check the specs of the year the diff came put of for the amount of fluid.
The seller did not show pics of the differential open, but there are several pics and it looks really, really clean. Comes from a 2007 with 21k m
04-02-15, 05:50 AM
#10
Lexus Test Driver
Thread Starter
...from a car with 21k miles. Like you suggested I will open it up and check the teeth and condition of oil. I think it is 75w-90. I'm not sure what a flange is but I will study your post.
I have not decided on my route for install but definitely not by myself. I may either go to my brothers house in Columbia, Maryland, or have my guy at merchants do it. Maybe we can meet up? But I know Columbia is far for you.
Do you have any suggestions about bushings or other parts? My goal is to maintain smoothness in my ride as opposed to your car that is optimized for the track :-)
I have not decided on my route for install but definitely not by myself. I may either go to my brothers house in Columbia, Maryland, or have my guy at merchants do it. Maybe we can meet up? But I know Columbia is far for you.
Do you have any suggestions about bushings or other parts? My goal is to maintain smoothness in my ride as opposed to your car that is optimized for the track :-)
04-02-15, 11:00 PM
#11
...from a car with 21k miles. Like you suggested I will open it up and check the teeth and condition of oil. I think it is 75w-90. I'm not sure what a flange is but I will study your post.
I have not decided on my route for install but definitely not by myself. I may either go to my brothers house in Columbia, Maryland, or have my guy at merchants do it. Maybe we can meet up? But I know Columbia is far for you.
Do you have any suggestions about bushings or other parts? My goal is to maintain smoothness in my ride as opposed to your car that is optimized for the track :-)
I have not decided on my route for install but definitely not by myself. I may either go to my brothers house in Columbia, Maryland, or have my guy at merchants do it. Maybe we can meet up? But I know Columbia is far for you.
Do you have any suggestions about bushings or other parts? My goal is to maintain smoothness in my ride as opposed to your car that is optimized for the track :-)
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