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Rorty De Dion Axle Assembly It is well established that the De Dion axle can offer benefits over both live axle and IRS suspension setups. This De Dion design breaks no new ground, but is devised specifically for the Lotus Seven style "Locost" sports car as detailed in Ron Champion's book "Build Tour Own Sports Car For As Little As £250 – And Race It!" No warranty is given or implied as to the design's suitability for any purpose. It is as yet unproven in a Locost, but is freely offered for educational and comparative purposes. Anyone building and driving a car based on this design does so entirely at their own risk. Due to their propensity to sue anything with a pulse, Americans are explicitly requested not to attempt to construct this assembly either in part or in whole. I absolve myself from any liability whatsoever. Bob Frost-Stevenson [email protected] www.rorty-design.com
De Dion Axle Assembly Description
No. Item 1 De Dion tube. 2 Hub plate. 3 Calliper bracket. 4 Ford Sierra rear hub. 5 Hex bolt, M10 x 30 and Ø10mm flat washer. 6 Hub bucket. 7 Axle bracket. 8 Shock bracket. 9 Panhard mount – axle, and 1/2"-20 UNF Nyloc nut. 10 1/2"-20 UNF RH rod end. 11 Safety washer. 12 Panhard tube. 13 Panhard tube ferule. 14 1/2"-20 UNF LH jam nut. 15 1/2"-20 UNF LH rod end. 16 Ø13mm spacer. 17 Hex bolt and Nyloc nut 1/2"-13 UNC and Ø1/2" flat washer. 18 Panhard mount – chassis. 19 Ford Sierra rear disc.
DE D
ION
ASS
EMBLY
5:1
RD
DD
A01
DE D
ION
TUBE
RD
DD
A02
10:1
HU
B P
LATE
RD
DD
A03
2:1
2:1
RD
DD
A04
CALLIPE
R BR
ACKET
2:1
RD
DD
A05
HU
B BUC
KET
2:1
RD
DD
A06
AXLE BR
ACKET
SH
EET
DR
G N
o
DR
AW
NS
CALE
TITLE
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LESS SP
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ISE:1. ALL D
IME
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S A
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IN M
ILLIMETER
S2. R
EM
OVE
ALL B
UR
RS
& S
HA
RP ED
GES
3. CO
RN
ER R
ADII R
0.754. C
HAM
FER
SIZE 0.75 x 45°
5. CO
NC
ENTR
ICITY 0.05 TIR
THIS D
RAW
ING
IS C
ON
FIDE
NTIA
L AND
IS S
UP
PLIED
ON
THE
EXP
RE
SS C
ON
DITIO
N TH
ATIT SH
ALL NO
T BE LO
AN
ED
, CO
PIE
D O
R D
ISC
LOS
ED TO
ANY O
THE
R PE
RSO
N N
OR
USED
FOR
AN
Y O
THER
PU
RPO
SE W
ITHO
UT TH
E W
RITTEN
CO
NSE
NT O
F RO
RTY D
ESIGN
FIRST A
NG
LE P
RO
JECTIO
N
UN
LESS SP
ECIFIED
O
THER
WISE
: TOLE
RA
NC
ES A
NG
ULAR
± 0.5°
.X ± 0.5.XX
± 0.25.XX
X ± 0.125
DATE
23.12.04
SH
OC
K BR
ACKET
1:1
RD
DD
A07
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8010 A
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TRALIA
DATE & N
oZO
NE
UN
LESS SP
ECIFIE
D O
THE
RW
ISE:1. ALL D
IME
NS
ION
S A
RE
IN M
ILLIMETER
S2. R
EM
OVE
ALL B
UR
RS
& S
HA
RP ED
GES
3. CO
RN
ER R
ADII R
0.754. C
HAM
FER
SIZE 0.75 x 45°
5. CO
NC
ENTR
ICITY 0.05 TIR
THIS D
RAW
ING
IS C
ON
FIDE
NTIA
L AND
IS S
UP
PLIED
ON
THE
EXP
RE
SS C
ON
DITIO
N TH
ATIT SH
ALL NO
T BE LO
AN
ED
, CO
PIE
D O
R D
ISC
LOS
ED TO
ANY O
THE
R PE
RSO
N N
OR
USED
FOR
AN
Y O
THER
PU
RPO
SE W
ITHO
UT TH
E W
RITTEN
CO
NSE
NT O
F RO
RTY D
ESIGN
FIRST A
NG
LE P
RO
JECTIO
N
UN
LESS SP
ECIFIED
O
THER
WISE
: TOLE
RA
NC
ES A
NG
ULAR
± 0.5°
.X ± 0.5.XX
± 0.25.XX
X ± 0.125
DATE
23.12.04
RD
DD
A08
1:1PAN
HAR
D M
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EET
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8010 A
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TRALIA
DATE & N
oZO
NE
UN
LESS SP
ECIFIE
D O
THE
RW
ISE:1. ALL D
IME
NS
ION
S A
RE
IN M
ILLIMETER
S2. R
EM
OVE
ALL B
UR
RS
& S
HA
RP ED
GES
3. CO
RN
ER R
ADII R
0.754. C
HAM
FER
SIZE 0.75 x 45°
5. CO
NC
ENTR
ICITY 0.05 TIR
THIS D
RAW
ING
IS C
ON
FIDE
NTIA
L AND
IS S
UP
PLIED
ON
THE
EXP
RE
SS C
ON
DITIO
N TH
ATIT SH
ALL NO
T BE LO
AN
ED
, CO
PIE
D O
R D
ISC
LOS
ED TO
ANY O
THE
R PE
RSO
N N
OR
USED
FOR
AN
Y O
THER
PU
RPO
SE W
ITHO
UT TH
E W
RITTEN
CO
NSE
NT O
F RO
RTY D
ESIGN
FIRST A
NG
LE P
RO
JECTIO
N
UN
LESS SP
ECIFIED
O
THER
WISE
: TOLE
RA
NC
ES A
NG
ULAR
± 0.5°
.X ± 0.5.XX
± 0.25.XX
X ± 0.125
DATE
23.12.04
RD
DD
A09
1:1
PAN
HAR
D
FERU
LE
PAN
HA
RD
TUBE
5:1
RD
DD
A10
SH
EET
DR
G N
o
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AW
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CALE
TITLE
A3
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NS
REV
No.
RO
RTY
DES
IGN
P
O BO
X 13270 LAW
CO
UR
TS M
ELBOU
RN
E
VIC
8010 A
US
TRALIA
DATE & N
oZO
NE
UN
LESS SP
ECIFIE
D O
THE
RW
ISE:1. ALL D
IME
NS
ION
S A
RE
IN M
ILLIMETER
S2. R
EM
OVE
ALL B
UR
RS
& S
HA
RP ED
GES
3. CO
RN
ER R
ADII R
0.754. C
HAM
FER
SIZE 0.75 x 45°
5. CO
NC
ENTR
ICITY 0.05 TIR
THIS D
RAW
ING
IS C
ON
FIDE
NTIA
L AND
IS S
UP
PLIED
ON
THE
EXP
RE
SS C
ON
DITIO
N TH
ATIT SH
ALL NO
T BE LO
AN
ED
, CO
PIE
D O
R D
ISC
LOS
ED TO
ANY O
THE
R PE
RSO
N N
OR
USED
FOR
AN
Y O
THER
PU
RPO
SE W
ITHO
UT TH
E W
RITTEN
CO
NSE
NT O
F RO
RTY D
ESIGN
FIRST A
NG
LE P
RO
JECTIO
N
UN
LESS SP
ECIFIED
O
THER
WISE
: TOLE
RA
NC
ES A
NG
ULAR
± 0.5°
.X ± 0.5.XX
± 0.25.XX
X ± 0.125
DATE
23.12.04
RD
DD
A11
1:1
PAN
HAR
D M
OU
NT
- CH
ASS
IS
