u-joint mystery?

dougson
dougson Senior Contributor
edited November -1 in HUDSON
I am trying to determine with certainty if the u-joints used on wet-clutch (-'54) stepdown 3 speed is the same or different from the dry-clutch ('55-) 3 speed Hash transmissions. I'm installing a '55-56 dry clutch 3 speed with O/D and '56 308 in a '54 Hornet. I will be using the Hornet rear axle assembly, rear drive shaft and center bearing (I hope!).

Comments

  • Geoff
    Geoff Senior Contributor
    We are talking chalk and cheese here. The "Hash" set-up uses a torque tube drive, so there will be no compatibility between the two types of transmission as far as connecting to the drive shaft is concerned. You will need to compare the two transmissions and determine if the overdrive units can be exchanged.
  • Clutchguy
    Clutchguy Senior Contributor
    dougson wrote:
    I am trying to determine with certainty if the u-joints used on wet-clutch (-'54) stepdown 3 speed is the same or different from the dry-clutch ('55-) 3 speed Hash transmissions. I'm installing a '55-56 dry clutch 3 speed with O/D and '56 308 in a '54 Hornet. I will be using the Hornet rear axle assembly, rear drive shaft and center bearing (I hope!).



    I thought there was a clearance concern in several ways that caused a bunch of work?. The starter[mounts up higher on the block] has interferance with the floor pan and also the bell-housing. The bell-housing is so much longer, confiquired different and has a different type of mounting to the cross-member. Sawz-all or machine the big flange on the back of the trans,save the slip yoke from the Hash. This all applies to the 55-6 trans.install.???
  • Geoff
    Geoff Senior Contributor
    I know you can transplant the Jet overdrive on to the back of the '55 Wasp overdrive transmission. The "Hash" Wasp was all Jet mechanically, back to the overdrive. The only difference was the output shaft and coupling for the torque tube. However, if you are using a '55-'56 engine and transmission, in Step down, as I said you will have to check that the overdrive is interchangeable with the earlier unit, to enable you to marry it up to an open drive-shaft. As Clutch guy says, you will have to check clearances with the floor, starter, bell housing, etc.

    I'm sure somebody will have done something similar and will chime in.
  • dougson
    dougson Senior Contributor
    Geoff C., N.Z. wrote:
    We are talking chalk and cheese here. The "Hash" set-up uses a torque tube drive, so there will be no compatibility between the two types of transmission as far as connecting to the drive shaft is concerned. You will need to compare the two transmissions and determine if the overdrive units can be exchanged.



    Yikes! Ok, I get it. Yes they are quite different. I guess I'll stay with the wet clutch '54 set up. The '56 engines, as I understand it, had a crank flange already machined to work with either the auto or the standard, but a pilot bearing is necessary to convert from auto to standard. Will have to deal with fluid I guess. And forget advising the auto., I don't want to go that way.
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