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Gtr Diff Ratio

gillies2001
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gillies2001 Collaborator

gillies2001

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I have a GTR front diff/sump. After taking the diff cover off i found the crown wheel has 48 teeth (should be 37 for a R32 / R33) and the markings show LS48.11 What is the ratio ? I think it works out at 4.3+.1 ? Strange as i thought R32 & R33 are 4.1 and R34 3.5 Any thoughts please

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blind_elk Grand Master

blind_elk

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The 48:11 means there are 48 teeth on the crown wheel, and 11 on the pinion. Which is 4.364:1 . And I'm guessing 'LS' means 'Limited Slip'.

The previous owner has obviously changed the gearing for some reason.

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Beer Baron Grand Master

Beer Baron

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yes and standard 32/33 GTR is 4.11:1 (37:9 from memory). the GTS4 35:8 (4.375:1) is a common upgrade as you can get front and rear that fit into a 32 GTR. I can't say I know what comes with a 4.36:1 ratio... if you've been having any AWD problems it's worth checking your rear diff to make sure the ratios match.

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gillies2001 Collaborator

gillies2001

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Thanks for the replies. I should explain that i have a R32 GTR with standard diffs and purchased this one as a spare (diff & sump) I was just checking the condition and found the odd ratio. Would this diff center fit another nissan diff housing eg. 240K/Skyline ?

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  • 1 month later...
SteveL Mentor

SteveL

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It looks like no other ring gear/pinion patterns are compatible with the F160?

There might be something out there, but I'm not aware of it.

Do you know of any, I want to severly drop the ratio up front and put a 3.26 or so in the rear

The closest you'll get in terms of that sort of ratio for both front and rear diffs is from R34 GTR, which is around 3.6 from memory. That's in terms of reasonably readily available, there also might be something aftermarket, of course.

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turbosupra Newbie

turbosupra

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Unfortunately I need lower than the gtr ratio's

There might be something out there, but I'm not aware of it.

The closest you'll get in terms of that sort of ratio for both front and rear diffs is from R34 GTR, which is around 3.6 from memory. That's in terms of reasonably readily available, there also might be something aftermarket, of course.

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  • 14 years later...

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