would anyone be interested in an aftermarket differential that was worth the money? - Miata Turbo Forum - Boost cars, acquire cats.

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Old 09-16-2006, 03:48 AM   #1
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Default would anyone be interested in an aftermarket differential that were worth the money?

I just talked to gary peloquin jokingly about how there is not a good replacement diff that can take power in 1.6 cars.

I told him it probably wouldn't be worth his time since essentially the torsen rear can be swapped in for $700 retail. However he still wanted me to call him next week.

So you know, Peloquin makes planetary differentials exclusively for vw. They are a little pricey at arround $750, but he offers a no questions asked lifetime warranty. The competition is quaife who charges $800 for just a diff. Gary Peloquin sells his unit with new bearings ($40 typically) and a bolt kit ($150 from ARP).

Are the 1.6l rear ends weak from differential design, or ring and pinion metalurgy?

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Old 09-16-2006, 09:47 AM   #2
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i would do it the 1.8 difs have recently gone pretty espensive they mostly cost almost a grand with the driveshaft, halfshafts etc. if i can get it done for less and still have a strong dif. I think the heat cycling of the small oil resevior and inherent metalurgy of the gears are to do with the failures, i have read on solo miata sites where there dif fluids reach in excess of 320 degrees F. An option to change gearing on a FI miata is also nice as the 4.3 while being great on lowwer power levels is pretty short on our cars.
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Old 09-16-2006, 09:51 AM   #3
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might be worthwhile if he can offer different gear ratios and strength while staying cheaper than a torsen
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Old 09-16-2006, 12:31 PM   #4
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Does Quaife make a diff for the 1.8 cars? Didn't find it last time I was waundering their website.
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Old 09-16-2006, 12:36 PM   #5
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Quote:
Originally Posted by Dr. Nick View Post
Does Quaife make a diff for the 1.8 cars? Didn't find it last time I was waundering their website.
I don't think so. I blew up one of thier diffs in my turbo vw a few years ago. The case broke and they refused to warranty on the excuse that...yes I'm serious, "we only warranty the interneal gears, not the case or flanges."

I will not buy anything from them.
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Old 09-16-2006, 12:37 PM   #6
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no matter what lsd u have in there you'll still have the weak *** ring and pinion. Thats what needs to be changed.
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Old 09-16-2006, 12:45 PM   #7
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no matter what lsd u have in there you'll still have the weak *** ring and pinion. Thats what needs to be changed.
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Old 09-16-2006, 06:18 PM   #8
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You can still pick up the open 1.8 drive line for cheap. Then watch out for an rx7 clutch lsd. I got the 1.8 driveline for $400 +$80 s/h. Just picked up an rx7 lsd for $100 and will replace the clutch disks. That's on the cheap for a strong lsd IMO. The transmission would be the next upgrade. - rob
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Old 09-16-2006, 06:31 PM   #9
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i thought he was offering better gears the lsd's can be had via kazaa and varius other sources most 1.6 difs breack ring gears from what i hear i would'nt worry about the lsd.
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Old 09-17-2006, 12:06 AM   #10
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My point was that it's way cheaper to get an lsd for the 1.8 diff- add that to the fact that the 7" ring and pinion is also stronger and you've got a upgraded limited slip rear for the same price of only an upgraded 6" ring and pinion.
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Old 09-17-2006, 01:02 AM   #11
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you show me where i can get a 1.8 dif halshfts drive shafts for less than 800 bucks and i will be glad to drop out of this discucsion i dont know if it is the heat or what but they are going for way more this summer it is ridiculous i dont care about the diference in lock up between the 2 that is why i run bigger tires anyway to make sure i get traction mine lays it down pretty even and does well on the road but if i didnt have to worry about breaking the pinion or had a better ratio i would probably enjoy it more.
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