JC-5 089 vs JC-5 129

[en035]

Hi All

JC-5 089 (Ph1 172 gearbox)
JC-5 129 (Ph2 172 gearbox)

Any other differences than the differential, Is JC-129 gonna be a direct fit to Ph-1 172?

 

[activ]

Question 1 YES there are.
Question 2 YES it is.

 

[en035]

Thanks for answers, Question 1 YES there are. what are they?

 

[activ]

The bearings on the input shaft, the input shaft and the gearbox casing to allow for the different bearings.

 

[en035]

how about the speed sensor on the casing, will the speedo work well on Ph-1, if we use JC-129 (complete gearbox)

 

[activ]

Yes,

The speed sensor is driven from the nylon drive wheel on the diff,
both the same.

 

[en035]

many thanks for the answers activ , it seems you have done this conversion before, and I see a quaife there as well. Best available.