TR4/4A SuperPro Front Spring Packing

[cjimj]

I’m trying to install the front springs on my 4A using the SuperPro polyurethane packing pieces, however they’re too small to fit easily over the spring locating horns.

First I tried lining them up as best I could, hoping the spring would seat them correctly. No such luck, they caught on one edge or the other of the horn and deformed significantly.

Next I tried pre-fitting them to the lower spring pan by pressing down on the raised inner flange of the packing pieces. I was able to force them correctly into place this way, but they slip off as soon as the pressure is removed.

I thought about applying some heat when they were fitted as above, but didn’t think it would do any good since the material is a thermoset polyurethane.

I also thought about trying to glue them in place before installing the spring, but decided to try to tap into the collective wisdom of everyone here before making a mess I’d regret.

I did search the forum but didn’t find anything about my specific problem, but surely someone has already fought this battle.

Any thoughts or solutions would be greatly appreciated,

Jim

 

[TR3driver]

How about returning them and getting some that fit?

 

[cjimj]

Not a bad idea except that I've got a rubber set from a different source that's the same size. From that I assumed that this is how they're made now. In fact, I bought the SuperPro's thinking they'd fit correctly. Hah!

I do have an older set I got from TRF many years ago that do fit correctly, but I used those in the rear.

But, it's certainly worth contacting TRF to see if they have something different.

Thanks,

Jim

 

[charleyf]

Jim,
I was just helping a friend with his TR6 and noticed that the rear springs are a smaller diameter than the front springs. With that in mind could have you be holding a set of packing pieces intended to fit the TR6 ( and maybe TR4A) rear springs?
Charley

 

[cjimj]

Charley, excellent observation, you are correct.

I bought the SuperPro's a while ago and forgot what I had ordered them for. My poor memory was helped along by the fact that the package is labeled 'Poly Spring Coll FR T', which I took to mean front. However, the part number I have is listed on Moss' website for the rear while the front has a different part number.

I do recall trying them in the rear and didn't think they fit all that well in the trailing arm. It looked to me like the spring could wear into aluminum casting.

I requested the dimensions from TRF for the parts they sell. It'll be interesting to see how they compare.

Maybe I should keep a diary of all the 'doh' moments I have as I put my car back together. It could be humorous, though it might be just a little too humbling

Once again clearer minds prevail.

Thanks everyone,

Jim

 

[TR3driver]

According to the parts books, 4A front takes the same ones as TR3 (100751). Both the rubber and poly ones I've gotten from TRF fit my TR3 just fine.

 

[Got_All_4]

I put Super Pros on my TR3 and they fit without any concerns. I also had some problems pressing in the A arm bushings in and found some help on YouTube.

 

[ghawk16]

Bringing up a thread WAY from the past. But...I'm putting in my springs on my TR4 and am having the same issues as the OP had. I bought the TRF Magic Suspension Kit with polyurethane bushings. The ONLY top bushing that doesn't fit is the one that goes on top of the spacer and spring/spacer locating horn. Ugh. If it's not one thing it's another. Anyone else had issues with the Magic Suspension Kits from TRF?