Will I be able to replace a 1986 300E's 70 amp alternator with a 1992 400E's 110amp alternator without any major modifications?

I amthinking about replacing my viscous fan clutch with a Flex-a-lite electric fan and want the additional alternator capacity to run the electric fan.

Thanks.

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1986 300E (3/2002) Rear ended and totaled (10/2009)
2000 Xterra (5/2000)
1992 400E (11/2009) -Sold
1986 300E (12/2009) - Sold
2004 E500 Wagon (6/2013) - Sold