>Christopher,
>
> Thanks for the information on the reduction. This unit I
>just picked up must be a 28% reduction with a serial number
>28/1307/106. How do you tell what type it is? D,J?
I remember on my OD tag it said Laycock De Normanville Type D.
The serial number is like yours, only it is the dreaded 32% OD variety.
BTW, I searched on the web last night, and ran across a Volvo OD tranny FAQ. It listed several model 4 speed trannies, and showed OD options well into the 80s. The 70s 122+ models were listed as the J type, but the 80s models were not specified. One refference on the FAQ listed the OD as a Jenson unit. He was probably confused though.
Jarrid