diff identification

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roadstermike
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diff identification

Post by roadstermike »

Hi, can anyone tell me what I have from these photos? or what do I need to look for? I assume its an H190 but how do I know for sure? Thanks.
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Michael
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fj20spl311
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Re: diff identification

Post by fj20spl311 »

Count the number of splines in the spider gears. Count the teeth on the ring gear and look for some marking on the carrier next to the ring gear.
Phil
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roadstermike
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Re: diff identification

Post by roadstermike »

I checked it out. It says 35:8 hp 4.4 on the ring gear. 23 splines, i think. LOM.52 xxx on the case. H190? Lsd or open? How do you tell the difference?
Michael
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spyder
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Re: diff identification

Post by spyder »

It's a posi H-190 carrier, very dangerous, I'll give you $100 to take it off your hands! :smt064

Description here:

https://web.archive.org/web/20050208223 ... g/lsd2.asp
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roadstermike
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Re: diff identification

Post by roadstermike »

Thanks for the info. I was looking on Gordon's website but didn't see that info. So its a 4.375 ratio. I also have the aluminum pumpkin as well. What do you think is a ballpark value for this? Do you think this ratio is okay for street use?
Michael
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SLOroadster
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Re: diff identification

Post by SLOroadster »

roadstermike wrote:Thanks for the info. I was looking on Gordon's website but didn't see that info. So its a 4.375 ratio. I also have the aluminum pumpkin as well. What do you think is a ballpark value for this? Do you think this ratio is okay for street use?
A 4.3 rear end is a little short for the street. With my 4.11 I'm turning close to 5K on the freeway in the fast lane. It would be good for Laguna Seca however ;)

As for value, hard to say. I think it would depend on the condition once cleaned up. How are the clutch disks inside?
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Will
Sorry, I find modern engine swaps revolting. Keep your G, R, or U series in your Roadster!
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roadstermike
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Re: diff identification

Post by roadstermike »

I dont have a clue on the condition of the clutch disks inside. Is this easy to check out or do I need to take it to a specialist? Can the ring gear be changed out for a 3.7 or 3.9 ratio gear? If you can swap out the gear, are they even possible to find?
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SLOroadster
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Re: diff identification

Post by SLOroadster »

The gears should be easy enough to swap. To see the clutch disks, I'd take it to someone who can rebuild LSDs. A 3.9 LSD would be sweet on the street.

Will
Sorry, I find modern engine swaps revolting. Keep your G, R, or U series in your Roadster!
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