301 redirects within same domain

[Bull135]

If I 301 redirects all urls from

http://domain.com/folder/keyword

to

http://domain.com/folder/keyword.htm

Are new urls likely to keep most of link juicy from source url and maintain the rankings in SERP?

[FedeEinhorn]

You may want to check this video:

watch?v=Filv4pP-1nw