Nosbod
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| posted on 3/2/10 at 09:44 PM |
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Diff Dilema
In my R1 Indy i'm currently running a 3.92 sierra diff with push in shafts and standard drum brakes.
I am looking to change the diff and have sourced 2 different options.
1) a 3.62 which will simply replace the 3.92 i have.
2) a 3.36 from a Granada with bolt on shafts, discs etc.
Which would be the better option and will the hassle/cost of fitting the 3.36 give worthwhile benefits over the simple drop-in of the 3.62?
Thanks in advance,
Chris.
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austin man
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| posted on 3/2/10 at 09:47 PM |
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Arent the Granada items slightly bigger diffs ??
Life is like a bowl of fruit, funny how all the weird looking ones are left alone
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daniel mason
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| posted on 3/2/10 at 10:00 PM |
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think they are 7 1/2" from granada but there is a 3.38 7"diff i think!
some 3.62 difs have LSD
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coozer
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| posted on 3/2/10 at 10:03 PM |
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I've just changed the diff in mine, replaced the 3.62 for a 3.92 and its made the car more lively on the road, better take up and now I can
doughnut as well
I have a 3.62 with push in shafts here if you need them...
1972 V8 Jago
1980 Z750
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daniel mason
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| posted on 3/2/10 at 10:17 PM |
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my R1 mnr has 3.62 lsd and hits 123 mph! the 3.38 will oviously hit a higher speed but it might not be quite as lively through the gears. i personally
think the 3.62 is best for this engine but others will disagree
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Mr G
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| posted on 3/2/10 at 10:58 PM |
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If the 3.38 is non lsd then there is the option of taking the back plate off and removing the circlips that hold the lobro stub flanges on allowing
you to take them off and use push in shafts.
Normal is getting dressed in clothes that you buy for work and driving through traffic in a
car that you are still paying for - in order to get to the job you need to pay for the clothes
and the car, and the house you leave vacant all day so you can afford to live in it.
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Hellfire
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| posted on 4/2/10 at 08:45 PM |
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Stick the 3.62 diff in. The ratio of the Granada diff may be slightly better but not worth the hassle of changing the diff mounts to accomodate it.
Phil
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Nosbod
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| posted on 5/2/10 at 07:31 PM |
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Thanks to everyone for your help.
I am going to buy both, and initially drop the 3.62 in. If i'm happy with it then all is well, if not at least i'll have the option of
swapping over to the 3.36. 
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