That is always the wrong choice.

I don't have my atsg book handy, but with it you could quickly determine likely causes, which could be as simple as a broken accumulator spring in the valve body. The book has a table showing which bands and clutches are active in which gear.

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James Marriott
2003 Buick Regal
1983 300D (228k, frau Auto)
1996 Suburban K2500 (192k, 6.5 turbo diesel/4WD towmaster 10,000)
www.engineeringworks.biz
1987 300SDL junker 170k
1982 300SD junker, 265k