Suspension 101 questions

[Rebel1]

Stephen, yes there is a huge difference. Here are the differences between the upper arms.

This measurement is from a line projected from the face that the upper ball joint bolts to the pivot shaft. Then measure from that point to the inside of the upper arm.

upper arms:
Series 1 front arm = 2.38" (6.04cm.)
Series 1 rear arm = 1.75" (4.45cm.)
Series 2 ( both arms same) 2.10" (5.3cm.)

Send ya email addy and I'll send you the pages.

Cheers

[Tenrocca]

A few of us CR Sydney locals love this jag upper arm discussion - The CR is supposed to have S2\3 arms, when I got mine they were like yours, and uncle Les helped get me sorted on that as I scratched my head for a while on what way they should go. I believe one of our grand masters (ie. one with a completed car) has the series 1 arms on his, always a fun discussion on which ones are "right"- I think the geometry is probably wrong with either ones though .

If you dont mind ebay do a search for jag ball joints - I think thats where I got mine. Im too scared to ask at repco for part prices.

http://cgi.ebay.com/ebaymotors/Jagua...spagenameZWDVW

[400TT]

Gee, I just totally ignored Series 1. Didn't think anyone would be using them now. Well I suppose not on purpose anyway.

Everything I said above applies to series 2/3.

There is a variation in lower arm designs within Series 2 as well. Which I have just recently found out. Same with tie rod lever arms. Makes finding matching parts a pain. It's ok if you are just buying a complete front set.

[Rebel1]

Originally Posted by 400TT

Gee, I just totally ignored Series 1. Didn't think anyone would be using them now. Well I suppose not on purpose anyway.

Everything I said above applies to series 2/3.

There is a variation in lower arm designs within Series 2 as well. Which I have just recently found out. Same with tie rod lever arms. Makes finding matching parts a pain. It's ok if you are just buying a complete front set.

And the uprights are slightly different.

But....knowing these differences can make setting the front geometry a little easier.

ie....If you want to reduce caster if using the series 11 uppers then use a series 1 lower arm. This swop will also increase neg camber but it's easier with the shims.

If you have series 1 lowers and want to increase caster then change to series 11 lowers.

If you have series 1 uppers you can swop them to increase/decrease caster.

Keep in mind that most kit manufacturers copy the Jag geometry...problem is a jag weighs 4832Lbs(2192 Kg).

So a bit of fiddling is needed for our lighter cars.