i need some help guys....

im doing my 4.3l to 6.0l swap in my 2004 silvy rcsb...i got my 4.3l out and tranny also! when i looked at the mounts on the frame it looks like the passenger side will mount rite up no problem.....but on the drivers side it will not .

the drivers side has the bolts going up at a 45 degree angle....on the frame the holes are straight across horizontal.

i ordered a set of 5.3l mounts and im stuck i went to the dealer and he sed their is only one mount available .....

HELP ME pleaese!!!

 

Pictures would be helpful.

 

Nice!! having the exact same issue right now on a friends truck lol!

 

thats what i got from the dealer.....5.3l mounts....i think the 4.3l frames are different....the part that is on the frame where the two bolts pass through are wider than the 5.3 or 6.0l mounts....th passenger side is fine...

i put the stock 4.3l motor mount on and it looks like it will line up! the passenger side needs the 5.3l v8 mounts though!

 

here are some pics of the frame mounts! and engine mounts....the first one is the v8 frame side mount is this what you guys arwe runnnin

the second is it and the v8 engine side mount how they would be but the bolt holes on the frame side mount done lay flat and are too close...

the third one is the v6 mounts showing how the fram has two holes flat not angled up and spread wider.....the only thing is it doesnt line up when in place the motor is about two inches forward and cant go back any more....

 

we tried 5 different sets of frame mounts!! lol His truck is an 04 2wd. Finally we got a set out of a 06 2wd silverado 1500 with a 5.3 and they worked!! Try those.

 

if you use v6 mounts the engine location will be off!

 

u need the motor mounts AND frame mounts for a 99-06 2wd v8 1/2 ton truck

 

i told the dealer v8 frame mounts....does 2wd and 4wd matter???

i have engienside mounts froma 5.3l v8....any way i could get a part number!??

my dealers suck and dont know alot about swaps they both looked at me and shook their haeds didnt really wanna help me at all i had to fight!

 

they are not all the same !! trust me. 99-06 has many different frame mount sets! All the sets i have were pulled by me out of 1500 2wd trucks from various years. Even got a set out of a early 04 and they were not the same as his 04. Try the frame mounts from a 2wd 1500 2006 silverado with a 5.3. And yes it does matter if its 2wd or 4wd.