70 Cuda what does A32 actually mean

[cataclysm80]

So does this mean that all 340 cars that had the A36 Axle Package got the Hemi Suspension?   

Yes, The A36 Axle Package includes Hemi Suspension, also known as Extra Heavy Duty Suspension.

[1971Y13]

I have A36 but buildsheet says ordinary 383 torsion bars on my 1971 Cuda.

[6bblgt]

I have A36 but buildsheet says ordinary 383 torsion bars on my 1971 Cuda.

Chrysler must have learned something concerning brakes (& rear springs) with the set-up they used on the 1970 A53 "TRANS AM" cars.

During the 1971 model year - the specifics of the axle package (A36 3.55/A31 3.91) 340/383 cars changed - the "HEMI" suspension went away & the 10" rear drums with power front disc brakes also changed.

the earliest B41/B51 (disc brake/power brake) 1971 e-body I have a broadcast sheet from with 11" rear drums is SPD 419 (4/19/71)

[6bblgt]

   Additionally, it gets some things that aren't coded on the broadcast sheet, like torque boxes, leaf spring mounting reinforcements, & pinion snubber reinforcement.
It might include a K frame skid plate and/or extra spot welds during assembly.
In the last few months of 1970 production, it might also include a rear sway bar.

not so fast  strictly speaking of 1970 e-body & the A32 "super performance axle package" 4.10 DANA
available ONLY on  440HP, 440+6 & HEMI cars OPTIONED with the D32 727 automatic transmission

all these cars had "HEMI" springs and torsion bars before adding A32
all these cars had skid plates & the "HEMI" oil pan before adding A32
it appears all HEMI cars were supposed to have the torque boxes & spring reinforcements
the torque boxes are rarely found on any 383/440 big block e-body (non-convertible)
pinion snubber reinforcement should be found on all (4.10?) DANA e-bodies only
NO rear sway bar on any e-body with a DANA - ever

the $250+ on a 440 car got you:
4.10:1 ratio sure-DANA 60 - upgrade from 3.23:1 ratio open 8-3/4" rear axle
power disc brakes - upgrade from HD manual drum brakes
power steering cooler if equipped with S77 (power steering)
&
max cooling 26" radiator w/torque drive fan upgrade from 22" radiator w/fixed fan

the $220+ on a HEMI car got you:
4.10:1 ratio sure-DANA 60 - upgrade from 3.23:1 ratio open 8-3/4" rear axle
power disc brakes - upgrade from HD manual drum brakes
power steering cooler if equipped with S77 (power steering)

[6bblgt]

A32 - 440HP, 440+6 & HEMI e-bodies
4.10:1 ratio sure-DANA 60 - about $150 worth - NOT available separately
power disc brakes - about $70 worth
power steering cooler - NOT available separately
max cooling  - about $30 worth - NOT available separately (STANDARD w/HEMI)

[Finoke]

I didn't see it mentioned but the A31 26 Rad is the same part number as the 426 hemi rad.

I had a 383 A31 Challenger R/T and the 383 / 4 speed with 3:91 combo was a lot of fun.

[cataclysm80]

I didn't see it mentioned but the A31 26 Rad is the same part number as the 426 hemi rad.

Only on the big block cars.
The axle packages and trailer towing packages included Max Cooling.
A big block with Max Cooling received the Hemi radiator Instead of the other 22 or 26 inch radiators that were available on those cars.
The Hemi always used that radiator.
A 340 with A31 didn't get the hemi radiator.  It used a different 26 inch radiator with inlet/outlet positioned for a small block.

[jlemler]

From what I know and it's not much, cudas came with 14 inch tires.  With the upgraded A31 option I assume it would come with the bigger tires.  Is this a correct assumption?

[anlauto]

From what I know and it's not much, cudas came with 14 inch tires.  With the upgraded A31 option I assume it would come with the bigger tires.  Is this a correct assumption?

NO

[6bblgt]

  most OPTIONs were "stand alone" & included everything necessary (or noted exceptions)

all that was required for A31 on any Plymouth e-body with 383 4bbl (BH/BP/BS) or 'cuda (BS) with 340 was a 727 or 4-speed

[6bblgt]

the minimum tire would be:

BH/BP with 383 4bbl & A31 = F78-14
BS with 383 4bbl/340 4bbl & A31 = F70-14