Jag IFS Swap Questions

Just looking at this thread and noticed a few of you doing this swap on the F-1. Any more info or pics or links would be cool. What year and type Jag would one look for?

 

Mid 70's to '85 seems to be about the sweet spot. I have an '85 on my Buick.

 

Thanks Z, and I found this......
http://www.jalopyjournal.com/forum/showthread.php?t=451036

 

I like this one from the way back machine...
http://www.jalopyjournal.com/forum/showthread.php?t=24785

 

What about 88 or 89? Looks to be the same as 86 and earlier and there's 2 88's on the CL now.

 

In a word, no. It does not mean that it couldn't be done. You could be the first!

 

They are different... I haven't seen one out of the car though, so it may be workable.,

 

NEVER weld steering U joints!!!!

http://borgeson.com/Designing/welding.htm

 

Someone should tell Sweet Mfg. a****st others that sell "weld on" U joints

 

Good luck finding any solid info on that!

There was what promised to be a very interesting and informative thread on the later Jag IFS here on the HAMB a while back, but it was deleted by the powers that be.

I researched the 'net pretty thoroughly, and all I could find were references to the later front ends being "wider" or "too wide". (This in reference to '49 ~ '54 Chevy cars).
The few actual width dimensions I found listed were all over the place, varying by as much as 6 inches!

So I said to hell with it and bought a '90 XJ6 to use as a donor for my 1950 Chevy sedan.

Haven't actually gotten into the swap yet, but a quick & rough comparison of the front end widths only shows a 2" total difference between the two cars.
By rough comparison I mean 2x4s across the outside of the stock wheel/tire combos on each car, measured with a tape measure, in the dirt on a not-too level section of my yard. Your mileage may vary!

Now if I'd just get off my *** and do some work, I might have some concrete info to offer!
Good luck!

 

I was just getting ready to post that.

We weld all the steering shafts in our race cars.

One less thing to fall apart without warning.

 

Good luck with at.
The reputation of quality of the post '86 models leave me wondering if you will succeed here.
The parts are not the same as the widely used series 1, 2 & 3 models.
Reinventing the wheel is what it is. A true hot rodder tribute.
They have outboard discs too .. good luck and keep us posted.

 

If you are talking about XJS or XJ12 then yes, they are the same. XJ6 (XJ40) is different.

 

I think you're going to run into trouble with the '90 front end. We used a '72 on our '51 Ford and it really pressed us on width and limited us with wheel choices...I'm using a narrowed '74 on my '34 Chevy (but time will tell if this will work as planned).

While the "overall" width on the '90 may be about the same, note the deep backspacing on the wheels. Traditional "hot rod" wheels tend to have less of a back space. When you put a "normal" wheel on, you start getting too wide. This is where we got into trouble with the '51...along with a heavy drop to the car.

Good Luck...hope I'm wrong!

 

I think I am just going to try and look for an 86 or earlier.

 

I looked for over a year for a series 1~3 donor car with no luck. The few I found were way overpriced. You'd think that being in the boonies of central Mississippi, I'd run across a fair price on one, but these bubbas think they're sitting on gold!

As to the quality of the later components, the only bummer that I've read about is the ill-advised self leveling feature. Most of these were replaced with standard suspension parts under warranty, as was my donor car.

By outboard discs, I ***ume you're referring to the rear discs. (And yes, I'll be using the rear suspension too). In my mind the outboard discs are a plus from the standpoint of maintenance. Not near as cool looking as the inboards, but not nearly the PITA to work on.

Yep, possible wheel backspacing issues are understood. For that reason, (and a few others I won't mention!), my car may not end up being exactly HAMB friendly. If that's the case, so be it!

This is an interesting thread. Thank you all for contributing. Information is a good thing.

 

Hi I am working on putting Jag front and rear in my 48 1/2 ton currantly doing exhaust. I will up date my blog next week when the exhaust is in.
http://1948fordpickup.blogspot.com/ Slow but comming along.

 

I checked out your blogspot. I see pics of both the "log style" exhaust manifold and headers with the sbc. Have you fit up your steering column, joints and steering shafts? If so given the 1 1/2" offset, what fit? My sbc in my F-1 is centered and have fit up the angled back dump rams horns. I could not get any headers to fit, tried several. For me it was either the curved back rams horn or the "log style" that would work. That area is the toughest fitup in the F-1 with Jag IFS and sbc.

 

I have what I think is a 90 XJ6 IFS. It is wider than earlier Jag units. Mine measures 67.5" wide from outer tire bulge to bulge with stock Jag wheels, 15 x 7, 33 mm offset (5.3" backspacing) and 205/60 tires. It is too wide for most of the 30-50s cars and trucks.

 

i used your post to do this to my 56 f100 about four years ago man you nailed it thanks a lot that truck rode fantastic.and man did it slam it i ended up having to put 30" radius tires to clear my driveway.no regrets cost my .only difference was i went with the power rack and power brakes but you did all the hard work for me very detailed hats off to you friend