4.88 final drive problems - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

GT86_PRAGUE · 10-13-2015, 06:18 AM

The gear status is working correctly after change in Ecutek on my 6MT 4.88 FD.
My speeds at 2500rpm in km/h:
1st 18
2nd 30
3rd 43
4th 54
5th 65 (180 at 7500rpm

)
6th 82

Grip Ronin · 10-13-2015, 11:01 AM

Quote:

Originally Posted by xsnapshot

They did, and they knew it was making noise. They made me aware before I drove it that "it's making a little noise still". That was quite the understatement.

BTW your car shouldn't be "humming like a mofo" on the highway. It should be quiet. Have you checked the temperature of your diff after some casual driving? Is it getting really hot?

i know it shouldn't be humming, Ive since taken it out and went back to the stock one. I suspect the lapping was not correct. I did contact weir about it but he said they should be quite but seems 50% of people on here with his gear sets have noise problems.

KVDB31 · 10-14-2015, 01:08 AM

I have the 4.88 gears from Weir. Bought all the parts Spencer suggested and the local shop I used had the job done in 1 day. Spencer was a stand up guy and they will stand behind their products.

10 days for a ring and pinion swap is outrageous! Based on what I've read above, your shop is 100% of your problem.

PS anyone in socal doing this swap PM me if you need a good diff shop.

Toyota86.ir · 10-14-2015, 03:19 AM

Weir is so responsive with good support

GT86_PRAGUE · 10-14-2015, 04:35 AM

Quote:

Originally Posted by Grip Ronin

i know it shouldn't be humming, Ive since taken it out and went back to the stock one. I suspect the lapping was not correct. I did contact weir about it but he said they should be quite but seems 50% of people on here with his gear sets have noise problems.

If it is humming, change the shop, because they dont know what they are doing.

GT86_PRAGUE · 10-14-2015, 04:36 AM

Quote:

Originally Posted by Toyota86.ir

Weir is so responsive with good support

Funny, he didnt responded to a single email from me before I called him.
But then it was pretty much smooth and I would buy from him again.

xsnapshot · 10-14-2015, 10:22 AM

UPDATE:

Took the car to a trusted mechanic last night. Almost immediately upon driving he said "wow that's really messed up. That will destroy itself in short order if you keep driving on it."

Which is crazy because the first shop said "oh it's fine long term. There's no risk to driving it. It will just be noisy."

So here is the game plan. I will drop it off at this new shop where they will drop the pumpkin, take the back cover off and get some pictures, and we will ship it off to weir performance. Weir will tear it apart and get me an inspection report.

I will use all of this evidence to come back to the original shop and get my money back. Last night I put in an official dispute with the credit card company and gave them all of my evidence.

I just so happen to work with two attorneys (I'm an engineer, but we have attorney's that work for us) who have been providing me with legal advice. It appears as though I have a really strong case, and should it need to go to small claims court, I believe I can win.

I plan on getting back all of the money I've paid this shop, and then some extra to replace and parts they F'd up during the install.

Specne's exact words when I talked to him yesterday "I talked to the shop you had do that work...they didn't want to listen to anything I had to say."

Toyota86.ir · 10-14-2015, 10:58 AM

Quote:

Originally Posted by GT86_PRAGUE

Funny, he didnt responded to a single email from me before I called him.
But then it was pretty much smooth and I would buy from him again.

I called him before emailing, very honest and easy man.
fast delivery good service.

GT86_PRAGUE · 10-15-2015, 03:25 AM

Quote:

Originally Posted by xsnapshot

UPDATE:
I plan on getting back all of the money I've paid this shop, and then some extra to replace and parts they F'd up during the install.

Good luck.

Quote:

Originally Posted by Toyota86.ir

I called him before emailing, very honest and easy man.
fast delivery good service.

Yes, but I wanted to avoid calling him from Europe.

nzer · 10-16-2015, 10:31 PM

Just picked up car with 4.556 final drive installed.

Shop didn't mention it but is there any run in period required?

Ultramaroon · 10-16-2015, 10:39 PM

Quote:

Originally Posted by nzer

Just picked up car with 4.556 final drive installed.

Shop didn't mention it but is there any run in period required?

Plug & Play. Maybe do a short cycle on the lubricant but the mag plug is quite effective.

mrk1 · 10-17-2015, 12:06 PM

I usually do a 500 mile fluid change on a new diff.

SUB-FT86 · 10-18-2015, 07:30 AM

Quote:

Originally Posted by Joeyk

wish I went with the 5.30 instead.

Why? Isn't the 4.88 enough?

KVDB31 · 10-26-2015, 11:01 AM

Quote:

Originally Posted by SUB-FT86

Why? Isn't the 4.88 enough?

There's a gearing difference in the transmission between manual and automatic. For the manual guys, they seem to say 4.88 is as much as you'd want. For the auto guys, I've heard the 4.88 is awesome, but the car can afford even more gear.

When in doubt, DON'T FEAR THE GEAR.
(aka. if you're on the fence, go with the higher gearing)

10-14-2015, 01:08 AM	#31
KVDB31 Senior Member Join Date: Sep 2012 Drives: 2013 FR-S Asphault Location: San Fernando Valley Posts: 193 Thanks: 13 Thanked 36 Times in 31 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	I have the 4.88 gears from Weir. Bought all the parts Spencer suggested and the local shop I used had the job done in 1 day. Spencer was a stand up guy and they will stand behind their products. 10 days for a ring and pinion swap is outrageous! Based on what I've read above, your shop is 100% of your problem. PS anyone in socal doing this swap PM me if you need a good diff shop. __________________ TSW Nurburgring 18x8, BFG Comp-2 235/40, KW V3's w/ Vorshlags, ECUTek by Evasive, Injen intake, FT86 Header, Motiv OP/DP, Nameless Axleback, 4.88 Weir gears, Subaru Legacy GT brakes, Five Axis spoiler, Shark Fin, 3000k HID's, LED goodies

10-14-2015, 10:22 AM	#35
xsnapshot Fast enough Join Date: Jun 2013 Drives: 2013 Subaru BRZ AT Location: nashville Posts: 175 Thanks: 11 Thanked 56 Times in 38 Posts Mentioned: 3 Post(s) Tagged: 2 Thread(s)	UPDATE UPDATE: Took the car to a trusted mechanic last night. Almost immediately upon driving he said "wow that's really messed up. That will destroy itself in short order if you keep driving on it." Which is crazy because the first shop said "oh it's fine long term. There's no risk to driving it. It will just be noisy." So here is the game plan. I will drop it off at this new shop where they will drop the pumpkin, take the back cover off and get some pictures, and we will ship it off to weir performance. Weir will tear it apart and get me an inspection report. I will use all of this evidence to come back to the original shop and get my money back. Last night I put in an official dispute with the credit card company and gave them all of my evidence. I just so happen to work with two attorneys (I'm an engineer, but we have attorney's that work for us) who have been providing me with legal advice. It appears as though I have a really strong case, and should it need to go to small claims court, I believe I can win. I plan on getting back all of the money I've paid this shop, and then some extra to replace and parts they F'd up during the install. Specne's exact words when I talked to him yesterday "I talked to the shop you had do that work...they didn't want to listen to anything I had to say."

10-16-2015, 10:31 PM	#38
nzer Senior Member Join Date: Jun 2012 Drives: 2012 Grey TRD GT86, 2015 VW Golf R Location: Wellington, New Zealand Posts: 1,572 Thanks: 666 Thanked 942 Times in 540 Posts Mentioned: 62 Post(s) Tagged: 0 Thread(s)	Just picked up car with 4.556 final drive installed. Shop didn't mention it but is there any run in period required? __________________ My fully loaded TRD86 http://www.ft86club.com/forums/showt...760#post582760

10-17-2015, 12:06 PM	#40
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: 21 Post(s) Tagged: 2 Thread(s)	I usually do a 500 mile fluid change on a new diff. __________________ The Build Thread GT28RS - eBoost2 - 3.91 Final Drive - Supra LSD

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10-14-2015, 03:19 AM	#32
Toyota86.ir Mike Tune HKS E85 FD 4.88 Join Date: Jan 2015 Drives: Toyota GT86 AT NA Stage 2 Location: Tehran Posts: 172 Thanks: 213 Thanked 35 Times in 27 Posts Mentioned: 1 Post(s) Tagged: 1 Thread(s)	Weir is so responsive with good support

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