Longest possible FD? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Icecreamtruk · 08-08-2021, 11:32 PM

Quick question, whats the longest final drive I can get for this diff? I know weir has 3.54 out of old supras diff (used) but what else is there lower than that? Anything between 2.7 and 3.5 out any other chassis that can work inside our carrier (or easy carrier swap, as long as it has an LSD).

I can get into the details of why I want this but not worth for the most part, its a track only swapped car. Just working around some issues and gearing.

x808drifter · 08-09-2021, 12:46 AM

Anything is possible custom.

soundman98 · 08-09-2021, 12:53 AM

I was thinking of this as a possible solution, but held off on saying it as I figured even with the LSx, the dramatic change in power it would create would likely just make the car slower.

Sorry, don't have any info, but curious to see the outcome.

Iirc, there was a guy building a drift car here that heavily modded a Toyota truck spool to work within our diffs. I believe that same thread had references to the IS300 rear diff being a similar mounting design, which might expand your options for parts sources

08-08-2021, 11:32 PM	#1
Icecreamtruk Senior Member Join Date: Dec 2015 Drives: Track preped NA FRS Location: Montreal, Canada Posts: 987 Thanks: 1,056 Thanked 680 Times in 405 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	Longest possible FD? Quick question, whats the longest final drive I can get for this diff? I know weir has 3.54 out of old supras diff (used) but what else is there lower than that? Anything between 2.7 and 3.5 out any other chassis that can work inside our carrier (or easy carrier swap, as long as it has an LSD). I can get into the details of why I want this but not worth for the most part, its a track only swapped car. Just working around some issues and gearing.

08-09-2021, 12:53 AM	#3
soundman98 ProCrastinationConsultant Join Date: Sep 2013 Drives: '14 Ranger, '18 Tacoma 4Dr LB Location: chicago-ish Posts: 11,330 Thanks: 35,240 Thanked 13,675 Times in 6,782 Posts Mentioned: 98 Post(s) Tagged: 0 Thread(s)	I was thinking of this as a possible solution, but held off on saying it as I figured even with the LSx, the dramatic change in power it would create would likely just make the car slower. Sorry, don't have any info, but curious to see the outcome. Iirc, there was a guy building a drift car here that heavily modded a Toyota truck spool to work within our diffs. I believe that same thread had references to the IS300 rear diff being a similar mounting design, which might expand your options for parts sources __________________ "The time you enjoy wasting is not wasted time"

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08-09-2021, 12:46 AM	#2
x808drifter LMGTFY Join Date: Mar 2016 Drives: 13 FRS, 91 Miata Location: Lava Town, HI Posts: 2,776 Thanks: 5,561 Thanked 3,646 Times in 1,625 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	Anything is possible custom.

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