P-30 spindle swap requires 2 ton axle, hunt around 'till you find Griggs info.
No higher rear ratios than 3.55 for light trucks are available, get a Brownie or modern axle(single speed only) from the P-30 you get the spindles from, get power steering box there too.
I raised the seat 1.5" on my '54 which helped with legroom.
All your answers are here if one reads back through old posts, lock on refrigerator door.
Ed
hi ed, isnt a 350 a 2 ton truck? it has the 5/10lug axles 26000 lb/ 16000lb gvwr
its got the 2 speed rear end so it wouldnt be a light duty truck plus i plan on working it hard so ill need higher gears but not so high its screaming on the highway. id even go with 4.88's or low 5.x:1 gears if possible since they are tall tires like 35" or so. worst case scenario is i rob the tremec tko500 5 speed out of my chevelle which will probably be more than enough to keep me going on the highway with the stock 6.X high ratio in the rear end.
thanks for commenting!!
