Miguel,

The real Grumman F8F Bearcat has an extremely complicated main landing gear. If you compare the distance of the LG in the wing from the centerline of the fuselage to it's length, you'd see that the gear is longer than the distance. So how does it retract ?? The gear has an additional trunnion, ie the upper arm/trunnion retracts outwards the LG leg retracts towards the fuselage. This is how Grumman was able to get the extra long gear into a shorter distance. This extra trunnion is responsible for the somewhat splayed out look of the LG on the Rare Bear. So yes it would be OK to use a 90 degree retract vs an 85 degree version. I used the 85 degree retract because I had a new set laying about.

Rich

Here's a Pic of the upper trunnion, you can clearly see that the trunnion retract outward towards the wingtip. Also note the outer edge of the oil cooler opening in the wing root.

Picture Courtesy of www.avweb.com

Here's a link to the article about the actual aircraft: http://www.avweb.com/news/columns/182122-1.html