big_wig_074

what are the costs involved and components required?for a rwd sierra,not a cosworth,cheers!

NEIL A

iTrader: (6)

Think your looking at about £2500/3000 for a 9" diff

big_wig_074

ok,but then,seeing as its not a cosworth,do i require a 2wd cosworth rear beam?does that include the diff casing?and then there will be costs involved to convert the beam to fit the diff.how much?
does anyone do a zoo style rear beam with a jag diff?i understand zoo are basically no more!

NEIL A

iTrader: (6)

Im sure the 9" diff fits into a 2wd beam

big_wig_074

really?i was always under the impression they werent a direct fit!

Kevin Sharp

iTrader: (3)

you need a 2wd rear beam, 2 long shafts, outer flanges, and grp a diffmount...its all a straight forward enough job

big_wig_074

cheers kev,what KIND of costs involved?group a diff mount costs?long driveshafts?outer flanges?
and where from?
cheers neil too!

Kevin Sharp

iTrader: (3)

Stavros

Just mustang 8.8 it you gaylord!

Did you get my text about 2moro too?

Kevin Sharp

iTrader: (3)

its all just standard 2wd stuff mate, just use 2 long 2wd shafts, you will see i had a spacer machined on mine insted of using a long shaft on the N/S, cost is hugeley dependent on the ratio, not too sure what they go for these days i havent really beenpaying attention to prices of cos stuff recently, i paid £2350 for my freshly rebuilt 3.6 9" diff about 5 years ago...i do know i could sell it for more now though lol...but it now lives in my 3 door antique

big_wig_074

excellent answer,cheers lads,am weighing up between 9 and 8.8 inch rear end.

bbspolo

whats the cost's involved in the 8.8 diff and what would u need 2 do 2 fit it 2 a cos?

Stavros

8.8 is a live axle fitted to mustangs, so would be more work to fit, but LOT cheaper to buy, and LOT cheaper to fix.

Also will suit straight line stuff as the geometry wont go to shit when squatting.

Well TBH compared to the geometry a stock cossie beam gives when lowered plenty, it would give better geometry at all times.

Charlie Chalk

iTrader: (1)

Danny Bate's Megenta saph run 12's on a mustang rear beam, Stage 1 power too.

His car handled too good as far as I'm aware.

bbspolo

oooooooo i see! lol

i thought it was a normal diff in its own casing like the jag ones! my bad!

what ever happened to the jag diff conversions im suprised they never took off? seemed like a cheep way of getting a strong rear end??

pa_sjo

They also do the 8.8" IRS from the Cobra....

big_wig_074

tbh IRS aint all that.
ive driven cars with solid rear axle that handle far better than cars with IRS
just after cost differences for 9 inch to compare with a mustang rear end,oh,and for BIG power!no point going 7.5 inch!

big_wig_074

did it have a mustang rear end?or a ladder bar setup only?i dont know!

Stavros

solid axle and ladder bar

big_wig_074

cool,bring on the powerglide!

Stavros

fuck a powerglide.

race c4 with transbrake is your best bet if you going auto

big_wig_074

i just meant badical transbrake auto,kind of decided now!manual is gay!

Stavros

ok, c4 it is then.

will cost you about a grand for one that takes 1000bhp no bother, 3 speed, manual shift, and has a mentalist transbrake too.

only issue is they not overdrive, so top gear is 1:1, ie 4th in most cars.

so either you will be topping out at 150, or need a long rear diff ratio, which is pretty easy with a mustang rear end.

big_wig_074

thats why im asking,next question was what is the available final drives?cos tbh ive found some very interesting stuff and high gearing is fine for me!

big_wig_074

ANYway,ill chat to you tomorrow about this!lol!no point now!!!

pa_sjo

With all due respect, saying live axle cars handle better than IRS cars is automotive suicide

pa_sjo

I just so happen to know where there is a bellhousing to put a C4 on a YB

Stavros

With all due respect, just because a car has a live axle certainly dont mean it doesnt handle as good as a car with semi trailing arms or whatever.

There a lot of great handling cars with live axles, and utter shite handling cars with more modern rear suspension.

He said non-Cossie, he talking 302W