Auto-X / Roadrace rear suspension 1969 Valiant

I would like to find someone with experience on the 3 link rear suspension. I am looking at XV Engineering. Art Morrison has one but it is for Chevy and could be made to work but XV is a Mopar specific company so I'm pointed toward them.

Preface: This will NOT be a discussion about whether the OEM leaf spring rear is good enough, as good, or better than the direction I choose to go. Don't come in here and try to change my mind. I believe in the OEM suspension but not for 9/10's road racing and auto-x. I need quick and highly adjustable rear suspension. The car will race on multiple road surfaces (rocky asphalt/ smooth cap, big apex/small apex, big track/short course) at different parts of the country (weather) so there will be changes to the suspension setting for every track. Nothing against leaf springs but they just aren't in the Valiants future.

The back story is that I thought my 1969 Valiant project was dead in the water after being at a chassis shop for 4 years. There was a bunch of excuses like the shop was sued, they lost a bunch of employees, the office lady scammed customers out of money, Covid, lost the employees again, .... I was going to pull my car on a few occasions and they would get it in the shop and do something and then it would get shoved back in a corner. I didn't have anywhere to store it at home for one. Also, I got balls deep on my deceased friends Duster "Arthur's Duster" and that took my mind off the Valiant. Arthur's Duster is damned near wrapped up so my mind has been going back to the Valiant. I went to the chassis shop today to tell them to get my damn car mobile and I'm taking it home and I want my money that I have already given them back. They promised to finish out some work that will be worth the money that I've already paid. They were supposed to paint it as well but that isn't happening now so they do have quite a bit of my money already paid in advance (huge mistake paying a shop up front). I will never use anyone who wants payment in full or even half up front again. After meeting some trustworthy shop owners afterwards I have found out that working off a draw the customer and shop owner are usually happier. You give the shop enough money to start, they bill you in stages. They don't go to the next tage without getting paid and the customer doesn't pay until a sta is complete.

What has been done over the 4 years is sub-frame connectors, mini-tub, fender modification for 18x10, Aeromotive fuel cell install in a fabricated fuel cell enclosure, and tunnel work for the T56. Work left to do is J-bars from firewall to front frame rail, lower radiator support stiffening, torque boxes, Roll bar, and what was supposed to be an in-house 3 link build. I will then get the car back and finish it with the front suspension I have put together with all the go fast goodies like SPC UCA's, boxed LCA's, delrin pin bushings, Hellwig 1-1/4" sway bar, Viper disc brake kit, along with Forgeline ZX3 3 piece wheels in 18x10 and 18x11, Quick Performance floater 9" rear ..... Also I have a 510 hp IMM built stroker 340 with Pro Flo 4 and a Tremec 6 speed ready to go.

While at the chassis chop (same guy that did work to Tom Kaman's purple Valiant) the guy told be he didn't feel like he wanted to build the 3 link. He has built some in the past for Pro 4 trucks and Camaros but he has admitted that his 3 links have not been performing like he expected at the Goodguys, NMCA autocross, and Optima OUSCI in Vegas. He actually suggested the Reilly Motorsport 4-link. Now, I do have the 4-link in my '70 Cuda and it really does handle great but I was always under the impression that the 3-link was the way to go for max effort road racing and autocross. I told him about XV and he said he was open to it if that's what I wanted.

I kinda get the feeling he just doesn't want to fabricate on my car (a Mopar) and he's just trying to bend some tubing up and slap on a suspension kit to get me out of the shop. It has always seemed like he didn't want to work on my car because he has been building 6 figure pro-touring GM cars and this is just side work (the real excuse for not working on my car start to finish?). They pretty much do complete builds and my car IS just some fab work and I'm doing the rest. It's a partial build and they make big money on rich guys builds and building cars for SEMA and the big auctions.

I really haven't seen any XV 3-links on A-bodies. Like I said, I have a triangulated 4-link and it does handle great but that is the Ride Tech kit. It has bushings and no swivel links. The Street Lynx from Reilly does have a heim type swivel link that I like better than bushings for race cars. Bushings for a street car is great but with limited use and frequent inspections I like the swivel links on a race car due to less bind. So, it looks like XV or Street Lynx. If I settle on the Street Lynx I will just do it myself. The whole point of taking it to a chassis shop was to do work that I didn't feel I had the capabilities to do (rear suspension designing, bend tubing, painting, and welding on safety items). The 4-link kit on my 'cuda was a fairly easy installation. For that matter, the 3-link XV kit seems like about the same amount of work.

FWIW, I have already seriously considered special built fiberglass monoleafs and a panhard bar but feel like I need more adjustability from event to event.