any DIY for 4.56 final drive install? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Gio_reyes_93 · 12-01-2017, 05:58 PM

im searching and searching for a final drive DIY write up

Impureclient · 12-01-2017, 10:30 PM

There's one in the DIY section. http://www.ft86club.com/forums/showt...ht=final+drive

All the pics are dead now though.

humfrz · 12-03-2017, 02:34 AM

Quote:

Originally Posted by Gio_reyes_93

im searching and searching for a final drive DIY write up

Hi ya Gio_reyes and welcome.

My short answer is to suggest you take it to a shop that knows how to do it, has the tools and shims and won't screw it up.

See how easy that is ......

humfrz

Joesurf79 · 12-05-2017, 06:11 PM

Quote:

Originally Posted by Gio_reyes_93

im searching and searching for a final drive DIY write up

A buddy and I swapped his ratio for a 4.88 using the DIY thread and a copy of the factory manual on hand.

It took the two of us (paranoid, but mechanically adept engineers) lots of time, shims, tools, checking, re-checking, re-work, pressing things on and off, and patience to get it all done and buttoned up and correct.

You can do it, just take your time, measure everything, and have a proper hydraulic press handy!

Hawk77FT · 12-05-2017, 07:00 PM

There are plenty of instances when I thought, after spending hours on something that I should have gone to a shop to do it. And in the case of the final drive change, i did! I don't think I would have the time, the patience, tools and most likely the knowledge to do it.
A shop would charge between 300-500 AUD to do it properly here.

Or you can simply search online and see who is selling one that has already been done. I went crazy with mine (micropolished, Supra bearings, etc.)

fika84 · 12-05-2017, 07:24 PM

Patience, the right tools and the right manual is what you need. Make sure you get a press and a dial in-lb torque wrench and be ready for your car to be down for a while, unless you pick up a spare carrier to work with.

There's links out there for service manuals as well.

mrk1 · 12-05-2017, 08:19 PM

Possible with patience, the side shims are also not included in any kit I know of. About $8 a piece.

This is the service manual for MK3 Supra, rear diff is the same.
http://www.cygnusx1.net/Supra/Librar...aspx?S=RA&P=40

If you buy the Ring and Pinion from Weir they have a good install kit. There solid pinion spacer may take a little more time, but it takes the guess work out of crush sleeves.

Gio_reyes_93 · 12-07-2017, 01:38 PM

yeah I called my nearest shop and I'm probably just going to take it to them. I'm a big DIY guy but don't really have some of the tools required. Also i don't want to F it up.

Teseo · 12-07-2017, 08:45 PM

Quote:

Originally Posted by Gio_reyes_93

yeah I called my nearest shop and I'm probably just going to take it to them. I'm a big DIY guy but don't really have some of the tools required. Also i don't want to F it up.

Tell us how was it. Cost of labor, the time, etc.

12-01-2017, 05:58 PM	#1
Gio_reyes_93 Member Join Date: Jan 2017 Drives: 2013 frs Location: San diego Posts: 16 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	any DIY for 4.56 final drive install? im searching and searching for a final drive DIY write up

12-05-2017, 08:19 PM	#7
mrk1 Senior Member Join Date: Mar 2013 Drives: Sterling BRZ Ltd Location: New England Posts: 1,702 Thanks: 403 Thanked 1,389 Times in 671 Posts Mentioned: 20 Post(s) Tagged: 2 Thread(s)	Possible with patience, the side shims are also not included in any kit I know of. About $8 a piece. This is the service manual for MK3 Supra, rear diff is the same. http://www.cygnusx1.net/Supra/Librar...aspx?S=RA&P=40 If you buy the Ring and Pinion from Weir they have a good install kit. There solid pinion spacer may take a little more time, but it takes the guess work out of crush sleeves. __________________ The Build Thread GT28RS - eBoost2 - 3.91 Final Drive - Supra LSD

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12-01-2017, 10:30 PM	#2
Impureclient Banned Join Date: May 2015 Drives: 2015 FR-S Location: NPR, Florida Posts: 2,404 Thanks: 1,802 Thanked 2,903 Times in 1,282 Posts Mentioned: 25 Post(s) Tagged: 2 Thread(s)	There's one in the DIY section. http://www.ft86club.com/forums/showt...ht=final+drive All the pics are dead now though.

12-05-2017, 07:00 PM	#5
Hawk77FT Senior Member Join Date: Jul 2012 Drives: GTS 86 Location: Australia Posts: 989 Thanks: 873 Thanked 475 Times in 272 Posts Mentioned: 12 Post(s) Tagged: 1 Thread(s)	There are plenty of instances when I thought, after spending hours on something that I should have gone to a shop to do it. And in the case of the final drive change, i did! I don't think I would have the time, the patience, tools and most likely the knowledge to do it. A shop would charge between 300-500 AUD to do it properly here. Or you can simply search online and see who is selling one that has already been done. I went crazy with mine (micropolished, Supra bearings, etc.)

12-07-2017, 01:38 PM	#8
Gio_reyes_93 Member Join Date: Jan 2017 Drives: 2013 frs Location: San diego Posts: 16 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	yeah I called my nearest shop and I'm probably just going to take it to them. I'm a big DIY guy but don't really have some of the tools required. Also i don't want to F it up.

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