the j20 steering box

Grant

New Member
Joined
Mar 20, 2005
Location
Colorado
Ive been searching through many, many threads all over the internet for info on this big-bore, 4 bolt variable-ratio steering box that everyone likes so much. I think i've determined i can get any 1980-1988 j20 steering box from a parts store and it will have inverted line fittings and a 4 bolt mounting pattern.

Two questions: Does anyone know if it will accept a stock style cj power steering shaft bell? Or is it the manual steering shaft size?

Also, ive read some places are turning small bore j10 boxes into j20 compatible ones by adding a 4th bolt. Is it possible to determine the larger bore by measuring something external?
 
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