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crazy longhorn · 09-03-2003, 08:09 PM

there is a slight lenght difference between the short 350 t & the 400t. the 400 is 11/16" longer.......you may or may not need to cut the shaft. if your truck has a slip yolk in the center of the shaft, you may be able to "split the difference". Care must be taken to check that ther is enough clearance with the slipyolk in the trans that it does not bottom(or "slam" ) the tailshaft on the larger bumps/with load. minimum clearance ,with the weight on the truck(truck on the wheels/empty) should be right @ 3/4". slide the shaft in the trans(with new slipyolk), till it bottoms & mark it......when you pull it back to bolt up to the diff, & set the hanger bearing you should have 3/4-1" clearance. The crossmember is also the same, but not in the same position(the holes will probably be in the frame for the swap tho).Good luck,crazyL

09-03-2003, 08:09 PM	#4
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	there is a slight lenght difference between the short 350 t & the 400t. the 400 is 11/16" longer.......you may or may not need to cut the shaft. if your truck has a slip yolk in the center of the shaft, you may be able to "split the difference". Care must be taken to check that ther is enough clearance with the slipyolk in the trans that it does not bottom(or "slam" ) the tailshaft on the larger bumps/with load. minimum clearance ,with the weight on the truck(truck on the wheels/empty) should be right @ 3/4". slide the shaft in the trans(with new slipyolk), till it bottoms & mark it......when you pull it back to bolt up to the diff, & set the hanger bearing you should have 3/4-1" clearance. The crossmember is also the same, but not in the same position(the holes will probably be in the frame for the swap tho).Good luck,crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... Last edited by crazy longhorn; 09-03-2003 at 08:11 PM.