im thinking of getting a gripper 7.5" diff for my cosworth. i have 470 bhp 350 lbft.
my torque is low compared to some cars but even so 1 launch kills a standard diff instant
diff has started whining now and dont want to repair/replace again with standard. ive got the rear suspension set as hard as i can and car doesnt squat a huge ammount so thats not whats killing the diffs.

anyways does anybody know what a 7.5" gripper is rated to in bhp and torque ?

 

Sue jay is selling one in parts for sale

 

thats the one ive seen mate and what made me start this thread

 

the diff unit will not break, but you are using std cwp in it, so depends on what you keep breaking in the std diffs?

 

A guy on here is selling a Dome built 7.5" diff with a 3.9 cwp, as already mentioned though the issue isn't always with the diff and the only real solution is a Jag diff or a 9" if your feeling flush.

 

do you know anyone who would do a jag diff conversion ?

 

broms out of nick now aint he ?

or poss danny b ,

i know there was a thread before , talking about diff options also looking at the mustang 8.8 diffs , they came stock in the uk ranger , but can buy different cwp and rations from the usa ,

beef

 

what ratio jag diff is the best for a cossie , ?

beef

 

must be one close to a 3.6 id of thought.
do you know how much these conversions cost not the diff itself just conversion fabrication ?

 

Jag is the cheaper route, Danny B would be your best bet really although I'd do some research on whats involved in fitting one as you may be able to tackle the job yourself. Use Baily Morris for the prop and any other bits you may need.

I'm not sure what ratio cwp comes in the Jag diff but I do believe Rod is just using a stock geared one without any issues

 

rod is using a jag diff in he's i think, surely a gripper diff will be ok for yours? have you got a decent diff mount?

 

not sure fella , dont think it was cheap ,

theres the diff mounting, custom driveshafts ,and prop mods needed iirc ,


sure someone will know ,

beef

 

yeah rods is a totally stock jag diff ,

and that takes it all lol ,

just dont know what ratio it is lol

 

yeah its a uprated £140 thing. polybushed looking.

 

cool, i'm sure a gripper diff would be ok, i was told if you like to launch ( which i do) a gripper diff is the one to have

 

If you hammer it hard all the time the CWP will break...

I ran a std cwp for 5 years and i think i broke 7 in that time but i do use drag/track tyres and nos too so prob around 500ftlb,

If you are mainly running road tyres i doubt you'd break the 7.5in cwp for a couple of years at least, maybe never break it.

If you did break it however a couple of hundered quid should see it fixed and then you could sell it on for good money if you ever wanted to upgrade further.

 

scoob ,

a thread on the subject fella ,

https://passionford.com/forum/showth...light=jag+diff

 

would be nice to be able to launch it but i can live without it. but seems like standard is struggling without launching so gotta do something

ive had 3 stage 3 cossies and no diff trouble at all ?

 

You need a 3.54 with Power Loc mine came from a Diamler Limo cost £20 + a £400 overall. So far its lasted 8 years or so with no probs.

 

i broke 6 standard diff's before i went bara, had it rebuilt by them and it's lasted the longest, could be worth giving them a call?

 

but for 6 of them its been parked up in the garage !!