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Old 31-03-2012, 09:35 PM   #1
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Default Lunched my Diff today

Sat on the start line at Stratford Raceway dropped the clutch and nothing just a clonk and plenty of revs and nothing in the way of forward motion

Had the tow of shame back to pits and noticed the prop was going round but no drive to the rear wheels after a terrifing 1 hour 20 mins tow poling from Stratford to Tysley up it went on the ramp took the diff out and this is what we found:

What's mising here?
Click the image to open in full size.

Oh yes these two bits! Or should I say 5 bits
Click the image to open in full size.

Rich
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Old 31-03-2012, 09:41 PM   #2
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Oops lol
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Old 31-03-2012, 09:44 PM   #3
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WOW, proper job that is!
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Old 31-03-2012, 09:46 PM   #4
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10/10 for effort lol
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Old 01-04-2012, 03:55 AM   #5
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Did you get any runs in before you killed it ?

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Old 01-04-2012, 09:00 AM   #6
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Quote:
Originally Posted by Just here for your crack View Post
Did you get any runs in before you killed it ?

Steve
Nope got there early que'd up in the fire up lane 6 cars into the day a Vauxhall Viva smashed into the armco, after an hour and 20 minutes of clearing up they reopened the strip I go to the front of the line and the diff shit itself off the line
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Old 01-04-2012, 09:04 AM   #7
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whoops......wanna buy another one i got one for sale
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Old 01-04-2012, 09:08 AM   #8
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Originally Posted by nellyscossy View Post
whoops......wanna buy another one i got one for sale
pm'd

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Old 01-04-2012, 09:47 AM   #9
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I've got a 3,9 diff sitting here if you want one to buy
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Old 01-04-2012, 09:55 AM   #10
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Alright Rich


you was told by twinny and myself it wouldn't last 5 mins ........and now you belive us


just put a gripper unit in it job done ...the new grippers are alot better now been bought out


you might aswell upgrade your drive shafts aswell because they will defo have play in them

these are whats on mine now

Click the image to open in full size.

were only trying to help Bud been through all this shit yrs ago

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Old 01-04-2012, 10:49 AM   #11
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Originally Posted by marco polo View Post
Alright Rich


you was told by twinny and myself it wouldn't last 5 mins ........and now you belive us


just put a gripper unit in it job done ...the new grippers are alot better now been bought out


you might aswell upgrade your drive shafts aswell because they will defo have play in them

these are whats on mine now

Click the image to open in full size.

were only trying to help Bud been through all this shit yrs ago

marco
It was ok till the sticky tarmac of Stratford Raceway
Twinnys already rebuilt my driveshafts.
I'm on the look out for a gripper now just depends on price.
Rich
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Old 01-04-2012, 10:57 AM   #12
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Bit of BluTack will sort that mate
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Old 01-04-2012, 10:59 AM   #13
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Dont forget to shot peen and super finish your c.w.p as i took all the teeth off them coming off a round about in 2nd with my gripper and r888 tyres lol there the last mods you can do before going jag diff or ford 9inch diff. Plus grippers are cheap i got mine brand new for 700!
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Old 01-04-2012, 11:10 AM   #14
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supra is way forward.
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Old 01-04-2012, 11:27 AM   #15
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Quote:
Originally Posted by a rs licker View Post
supra is way forward.
I've been on the look out for a 3.9 supra diff for ages but can't find one.
Rich
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Old 01-04-2012, 11:39 AM   #16
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don't think they do 3:9.. 3:7 or 4:1 ive found.
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Old 01-04-2012, 11:45 AM   #17
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Quote:
Originally Posted by Turbosimpsons View Post
don't think they do 3:9.. 3:7 or 4:1 ive found.
Got this off the Supra forum:

Normally Aspirated - 4.30:1
2.5 Twin Turbos - 4.10:1
3L Turbos (87-88) - 3.90:1
3L Turbos (88-92) - 3.73:1

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Old 01-04-2012, 12:30 PM   #18
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i think, not all of them were bought into the uk
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Old 02-04-2012, 09:28 AM   #19
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Done the same thing to my diff friday. Shot those two little cogs out of the caseing :0
Are thick walled casings avalible? When these gripper diffs are built into a casing is everything else upgraded? Flanges bearings, cw&p etc.
I'm sure it was my planet gears and pinion that failed not the actual diff.
What can be done to prevent the same thing happening again?
Regards Aaron
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Old 02-04-2012, 09:45 AM   #20
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shit - i hope my diff lasts at central day - somehow i very much doubt it

i would look for a jag diff mate
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Old 03-04-2012, 02:55 PM   #21
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jag diffs use the old joints not modern cv joints, plus ive got adapters for the driveshafts and prop so i can use standard cosworth shafts.
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Old 03-04-2012, 07:33 PM   #22
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Or dear lol.
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Old 04-04-2012, 07:45 AM   #23
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Quote:
Originally Posted by Turbosimpsons View Post
jag diffs use the old joints not modern cv joints, plus ive got adapters for the driveshafts and prop so i can use standard cosworth shafts.
Which model jag? Theres alot of different models. What mods need to be done to fit the diff to a cosworth beam. Also is there enough room for the diff + extra flanges and the cv's?
Does sound like a good mod but finding it hard to find any conversion info.
I've got about 450bhp and standard diffs start whining after the second drive
Regards aaron
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Old 04-04-2012, 08:01 AM   #24
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Quote:
Originally Posted by alo View Post
Which model jag? Theres alot of different models. What mods need to be done to fit the diff to a cosworth beam. Also is there enough room for the diff + extra flanges and the cv's?
Does sound like a good mod but finding it hard to find any conversion info.
I've got about 450bhp and standard diffs start whining after the second drive
Regards aaron
might be worth speaking to rod as im pretty sure thats what he has on his,
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Old 04-04-2012, 08:36 AM   #25
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Quote:
Originally Posted by alo View Post
Which model jag? Theres alot of different models. What mods need to be done to fit the diff to a cosworth beam. Also is there enough room for the diff + extra flanges and the cv's?
Does sound like a good mod but finding it hard to find any conversion info.
I've got about 450bhp and standard diffs start whining after the second drive
Regards aaron
You need to ask rod tarry or mark sheed but im shore rods diff is from a daimler limo! and yes they fit into a modded cosworth beam but drive shafts and diff flange on prop need modding i think. Also im shore rods diff was dirt cheap! but the cost was in having other bits modded
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Old 04-04-2012, 08:42 AM   #26
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so how much is a supra diff conversion?
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Old 06-04-2012, 12:37 AM   #27
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The 3 Door is now back on the road sporting a brand new Bara 240nm pumped up diff with forged sun and planet gears.
It feels really nice and tight and lights up both rear tyres nicely
Rich
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Old 06-04-2012, 01:21 AM   #28
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Old 06-04-2012, 08:47 AM   #29
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Lovelyyyyyyy
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Old 06-04-2012, 08:47 AM
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