LS differential
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- Forum Newb
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LS differential
Need help identifying this LS differential. I acquired it a number of years ago with a bunch of other parts from an old racing associate getting rid of his affliction. I believe it was used in a Roadster at one point but doesn’t look exactly like the H190 units I have seen. There is a spacer pressed on to the journal adjacent to the ring gear mounting face. Dimensionally everything seems correct but there are no setup dimensions stamped into the case. I am aware of some references to R160,180,200 but don't know exactly what this is. Any help or concerns over its use appreciated.
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- theunz
- Roadster Nut-Site Supporter
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- Location: Catoosa Ok.
- Model: 2000
- Year: High Windshield-68-70
Re: LS differential
It's been so long since I've seen my LSD that I can't help you identity yours, but I do know that some of the ring gears for the H190 do require a spacer.
Mike M
Old enough to know better, too old to remember why!
1969 2000 solex mine since 1972, under resurrection. (Finally resurrected as of spring 2019!)
1969 Porsche 911s -worth more, but not as valuable! Gone!
2017 Lotus Evora 400 - Oh my!!
Old enough to know better, too old to remember why!
1969 2000 solex mine since 1972, under resurrection. (Finally resurrected as of spring 2019!)
1969 Porsche 911s -worth more, but not as valuable! Gone!
2017 Lotus Evora 400 - Oh my!!
- 2mAn
- Roadsteraholic
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- Joined: Mon Jan 09, 2017 5:02 pm
- Location: Inglewood, CA
Re: LS differential
I read that to put a LSD unit on my 4.38 rear end Id need a LSD with the spacer... I had a LSD unit also, I should compare mine with your pics to see if I can spot the difference
Simon
Current Cars:
-1999 Porsche 911 4/98-build, 3.8L M96
Current Cars:
-1999 Porsche 911 4/98-build, 3.8L M96
- spyder
- Roadster Fanatic-Site Supporter
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Re: LS differential
Here is a shot of the two different diffs.
An archived web page with part numbers and compatibility's.
https://web.archive.org/web/20050209204 ... g/lsd5.asp
IIRC, 38420-A9980 is for the 9 tooth pinion and 38420-16330 is for the 8 tooth pinon.
Here's an interesting thread on Ratsun,
https://ratsun.net/topic/17044-h190-dif ... wpictures/
Aftermarket unit.
https://osgiken.net/i-24705710-lsd-niss ... rl311.html
An archived web page with part numbers and compatibility's.
https://web.archive.org/web/20050209204 ... g/lsd5.asp
IIRC, 38420-A9980 is for the 9 tooth pinion and 38420-16330 is for the 8 tooth pinon.
Here's an interesting thread on Ratsun,
https://ratsun.net/topic/17044-h190-dif ... wpictures/
Aftermarket unit.
https://osgiken.net/i-24705710-lsd-niss ... rl311.html
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- Forum Newb
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- Joined: Mon Feb 23, 2015 2:20 pm
Re: LS differential
Spyder,
Thanks for the photos. If I had to guess I would say the one I have looks like the one on the right as the case is shorter than the others I have seen in the past. As mentioned there are no setup numbers stamped into the case as yours show and the spacer is unusual. I have made a sketch showing some dimensions as closely as I can measure them. Unfortunately I am not planning on using in my car so will put it on ebay in hopes that someone will recognize it and have a use.
Thanks for the photos. If I had to guess I would say the one I have looks like the one on the right as the case is shorter than the others I have seen in the past. As mentioned there are no setup numbers stamped into the case as yours show and the spacer is unusual. I have made a sketch showing some dimensions as closely as I can measure them. Unfortunately I am not planning on using in my car so will put it on ebay in hopes that someone will recognize it and have a use.
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