Hey Kessie,
Welcome aboard. My suggestion to you would be to check out low rider websites and forums. They use Jag IRS and air bag setups all the time.
How expensive is shipping from the states? I know that QA1 shocks have progressive springs but four sets might be cost prohibitive. I'd check out Summit Racing for prices.
Also, check out Ride Tech, they might pics and kits to give you ideas.
Good luck with the project!

I have a 98 ZR2 S10 myself. If I had the time and resources, I'd do the a similar swap myself. Only concern I would have is the wheel bolt pattern from the 94 unit. If this before the Ford acquisition of Jag.
Not that redrilling the pattern is difficult, but it is good to check.
A shop down the street from me did a similar swap with a Vette axle into a full size Chevy truck and it was very straight forward. I expect it would be easy with a jag rear and a good cross member into you S10.

Good luck and can't wait to see pics!

If this is still a Jag rear, the ring and pinion are a Dann 44 design and they can be replaced with any ratio between 2.88 and 3.92. Anything over that and you need a different sized carrier. An experienced shop should be able to do the gear change for 300-350 plus the gears.

Have you thought about using a trailing arm instead of a watts link? Much easier and might be cheaper with heim joints. Just make sure it pivots on the same axis as the lca. That's what I did and probably should have pointed out better.

I have to correct my prior post. I can't find the post I was trying to reference. In short, the analysis came down to the coil overs creating a torque couple which alternate their compress and release cycling. This exaggerates the twisting of the lower control arm. The lca design lends itself to twisting by accommodating the in board brakes, coming in and narrowing down to the tube and then widening again for the hub.
The way identified to prevent the twisting is to run connecting tubes which reinforce the lca and prevent the twisting. This is what I did.
If anyone can find the original post, please post a link as I can't seem to find it.

Small and steady progress is better than no progress.

It's off a Jag, pretty nice setup. I don't remember when they moved out board brakes, but this is definitely inboard. Can't tell which year, but a lot of the parts are interchangeable enough that asking  for parts off a mid 70s xj12 should get you good replacement parts.
Any specific questions?

I would say check out Snow White engineering but they are out of business. Try Kuegal, not sure the spelling. They sell kits and cross members, you should be able to learn what you need from the pics. I think Speedway Motors bought Snow White and they'll have good usable pics in their online catalog.
Good luck on your build.

Talk about a sleeper project.
Looks like fun!

Welcome aboard

Welcome to the forum.
What project are you working on? Mixing BMW and Ford parts seems like some kind of a budget'ish build with on hand parts.
Can you post pics of the pieces involved?
Thanks!

Nicely done, I like the color combo. Where did you get the finned cover?

If you do a web search on:
"wilwood jag irs conversion"

You'll get several results including:
https://www.jheengineering.com/
http://www.hotrod.com/how-to/chassis-suspension/1302sr-independent-rear-suspension/
http://www.wilwood.com/Applications/StreetRodLanding.aspx - I found this most interesting.

 

The Jag unit is a Dana 44, 8.5 inch ring gear.  If the 3.08 setup is also for a Dana 44, you'll be in good shape.  A specialized axle shop should be able to do the swap and proper setup for about $300.
The carrier size doesn't change until you get between 3.73 and 4.11.  I don't remember the size exactly, I just know it is between the two.
Bump stops are tyically used to keep the shocks from bottoming out for a fully compressed suspension.  Shock length "should" limit the extended travel.  However, (I think) with some 'vette rears, breakage has been known to happen when power is applied and the rear suspension is fully extended while on a lift.  I think this is a rarity and has something to do with the way power is applied and the limited slip distributes power.
Research the unit Daze placed in his Mustang.  As a uni-body, some fab work was needed but overall this was pretty straight forward.

Good luck with your project!

32Sedan, welcome aboard.