Rear spring platform height adjustment

[Cubieman]

I bought a MCS 1WNR kit from Bimmerworld and they sold me the RE perches and 5" springs. They work.

Yeah, I have been looking at 5" springs as 5.5" are not so common.

I would like to stay with a progressive spring if possible. Maybe I'll reach out to TCK and see if they have anything.

[Cubieman]

Well I guess I am stuck with traditional adjusters, TCK offers a 5.5" 500lb beehive spring but say it will bind on this chassis.

Maybe someday if I go to stiffer springs I'll be able to use these RE adjusters.

My BC's had 5.5" rear springs, they were swifts, I don't know the rate unfortunately but I'm sure it was significantly higher than 500lb.

I just don't care for the design of the TCK perches, they didn't machine a flat base on the bottom. So there is very little surface area on the control arm.

I may buy RE'S traditional style perches or maybe just some ebay ones, simple part.

[moproblems]

Well I guess I am stuck with traditional adjusters until, TCK offers a 5.5" 500lb beehive spring but say it will bind on this chassis.

Maybe someday if I go to stiffer springs I'll be able to use these RE adjusters.

My BC's had 5.5" rear springs, they were swifts, I don't know the rate unfortunately but I'm sure it was significantly higher than 500lb.

I just don't care for the design of the TCK perches, they didn't machine a flat base on the bottom. So there is very little surface area on the control arm.

I may buy RE'S traditional style perches or maybe just some ebay ones, simple part.

Eibach makes a 60mm non beehive 514lb/in spring in a 5.5 inch length. Eibach 140-60-0090. 2 inch block height so I wouldn't worry about spring bind or needing a beehive spring.

[bigjae46]

What's the thread dia? Most are 1.5 but coarse at 2.5 starts with M18. Otherwise, 1.75 or 2.0 for m14 & m16.

Big Jae, re how they work, I envisage a big ball bearing, but I've never seen one disassembled. Clever product. I always seem to use 2.5" & 65mm rear springs so never considered them.

I have the RE spring perch in anticipation of the FCM dampers. I used the TCK beehive spring and it works fine. I am at about 25" ride height with 275/40R17 tires so I am not very low.

I was wrong, these make small adjustments SUPER easy! Love them!

[Cubieman]

I have the RE spring perch in anticipation of the FCM dampers. I used the TCK beehive spring and it works fine. I am at about 25" ride height with 275/40R17 tires so I am not very low.

I was wrong, these make small adjustments SUPER easy! Love them!

So you used these with standard TCK 6.5" spring?

I just ordered a set of 5.5" eibach linear springs as mentioned a post above yours so I can get ~13.25 center cap to fender height which I cannot with the TCKs.

I have to lower the RE adjusters so much they contact the axle unfortunately.