[TR] TR4A IRS Suspension Question

Jim Henningsen trguy75 at gmail.com
Tue Mar 23 18:06:16 MDT 2021


Ok, just finished redoing front and rear suspension on my 67 4A IRS.
Complete disassembly, clean, repaint, new urethane bushings, tie rod ends,
trunnions, etc.  New comp springs ( 1 inch lower) all corners, new stock
tubes shocks up front and new KYB gas shocks on the tube shock conversion
brackets for the IRS.  Reinstalled all alignment shims as installed as the
car drove pretty straight.  Urethane packings on springs. 

After completing, I noticed that all four corners have a slightly different
ride height when measured from garage floor to bottom on fender lip at
center of each wheel.  Left front: 26 3/4 inches, Right front: 26 1/4, Left
rear: 27 3/8, right rear: 27 7/8.  I think the higher rear height is coming
from the tube shock conversion as it was lower with the levers.    So about
a half inch off each side.   I don't recall having this issue when I redid
my TR6, but that was a while ago.   Rears also have stock trailing arm
brackets (one and two notch brackets on each side - believe these are
original from new given history of the car).  

Looking for help on next steps before bringing it in for an alignment.  Will
alignment correct height difference or do I need to add 1/2 inch spacers on
lower sides.  I am going to put uprated valved levers back on rear to
eliminate the extra height in rear.  

Any help appreciated.   

Thanks
Jim Henningsen
Ocala FL
Too many TRs to maintain!
61 3A
62 4
67 4A
75 6
81 8



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