anyone ever diy'd a rear end pac and ARB's

[maccavvy]

Got a cheeky bonus this xmas from myself . hehe. looking to spend a bit on the car been looking at rear end pac and ARB's
the roll bars worked really well on my last motor.

anyone ever diy'd these. Im very handy on the spanners and have access to a 2 post lift. any help guys ?

Car is a 04 cv8

also ive seen whiteline bushes very cheap , and ideas on these items.

Edited by maccavvy on Thursday 24th December 07:50

[neiljohnson]

On a ramp the bushes are not to bad a job but you need to be careful to align the rear subframe correctly
The arb's are a pita though!

[maccavvy]

care to elaborate on possible alignment issues and why they are a pain.?

love to get all info before tackling a job.

[mfp4073]

maccavvy said:

care to elaborate on possible alignment issues and why they are a pain.?

love to get all info before tackling a job.

The large rubber bushes that fix the rear subframe to the car,(They are located ahead of the rear wheels) are really tight and you can strip the threads when getting them off.
That's why I got Monkfish to do it. They also use an alignment tool to get it right.

Before my trip to Monkfish I replaced the rear anti roll bar bushes, but kept the original anti roll bar. I also replaced the Diff insert. These jobs were OK to do, however you need to drop the diff to replace the anti roll bar rubbers, or you will spend 4 hours trying to get the bolts back in...like me!

When the job was completed I really noticed the difference. I just wish I had a four post lift!


John

[Mud_]

Sure you want thicker ARBs? The poly bushes on their own will make a big difference - I've not got the thicker ARBs on mine, but I'm sure there's an argument for not doing them...not that I'm saying it's wrong, just possibly subjective (I'm mindful because mine is already stiff for the road). Is your diff on the OE bush? Do you have a harrop diff cover? Is the car on lower/stiffer springs, etc? I'm not claiming any great knowledge here, just prompting questions

[MyM8V8]

Mud_ said:

Sure you want thicker ARBs? The poly bushes on their own will make a big difference - I've not got the thicker ARBs on mine, but I'm sure there's an argument for not doing them...not that I'm saying it's wrong, just possibly subjective (I'm mindful because mine is already stiff for the road). Is your diff on the OE bush? Do you have a harrop diff cover? Is the car on lower/stiffer springs, etc? I'm not claiming any great knowledge here, just prompting questions

^^^. Do the bushes first and see if you need any further stiffening. There is a relationship between spring rates, shock rates and ARB stiffness. Get it wrong and you will be all over the place. Also doing more than one thing at a time means you wont know what made the difference.

[maccavvy]

cheers for the responses guys.
when you say drop the diff do you mean remove. or lower.??

i find the car rolls a lot. but lowering it is a no no. it already scrapes on the speedbumps around here

I had arbs on my last car and found they made a great difference, I know pitching can be an issue but it was worth the trade off.

I may let MF do the bushes as its due its service in 2 months. then go from there.

keep the info coming it all helps.

[neiljohnson]

Alignment been covered above
Arb's are tight coming out & going in & as said dropping the diff to do the rear is required
Doing the bushes makes a huge difference to the way the cars drive

[Sohlman]

When I bought my car it sat pretty low at the front, but I was told it had not had lowering springs.

Noticed a noise over time and concluded it was the front top mounts. Had these changed and gained about an inch in height. This could solve your speed bump issue.

J

[mfp4073]

Sorry, when I said drop the Diff, what I meant was lower it on a jack.
If I remember correctly, I left the prop shaft alone, then removed all the bolts that fasten the Diff to the car. You then slowly lower the Diff just enough so you can remove the bolts on the ARB. You then replace the rubbers and connect it all back together.
You might also have to lower the exhaust a bit to allow the Diff to drop, depending on what type of system you have fitted.
I hope that helps.

Merry Christmas

john

[maccavvy]

I don't think the car is too low per se.

I think the exhaust is too low. defilippo headers and x force exhaust

the flanges catch on speed bumps (not all) sometimes.

id rather see if I can dial out the roll that's all