Back in the game. RCSB 1500 D-max swap coming...
02-27-2013, 08:56 PM
#32
Im interested to see how this turns out and how hard it is. Damn you, Ive been reading on the Dmax forums about the swaps. One guy with an rcsb Z71 that he swapped to 3.42s is reporting over 28mpg. Thats friggin nuts, thats almost triple what I get 
02-27-2013, 09:26 PM
#33
That's awesome! That reminds me, I need to check the RPO codes on the truck I bought. My guess is it has 3.73's. Might be worth switching even to 3.23's eventually.
I haven't had a chance to do anything with the truck yet except take off the tailgate and tool box
I'm going to end up with a truck bed and cab sitting on the back porch, bet the neighbors will love that
I haven't had a chance to do anything with the truck yet except take off the tailgate and tool box
I'm going to end up with a truck bed and cab sitting on the back porch, bet the neighbors will love that
02-27-2013, 09:51 PM
#35
They make 3.42s for the 11.5" rear should you decide to try it out. I think with how relatively light the truck will be and a juiced up Dmax you could get away with the higher gear. Do you really think youll be able to run the 9.25 front?
02-27-2013, 09:59 PM
#37
Only thing I havent read about yet is motor mounts. Seems you can notch the frame and drop the dmax cooling stack down so you dont have to do a body lift. Also might want to check and see how much adjustment youve got left on the torsion bars. The Dmax is a little over 300#s heavier. Could always swap to HD Tbars I suppose though.
02-27-2013, 10:05 PM
#39
i was wanting to do this a few years ago to my truck but never had the $$ to pull it off... then when i did, i bought the car & started playing with it instead. now, i kinda wish i had...
i can see how you'd want to make sure it'll run in stock form first, but it'd sure be a lot easier to mod while it's all apart.
i'd be throwing TrueTracs in there too if it's feasible 
i'm pretty sure i've read a few places it takes a 2" body lift to fit the Allison in a 1500 - something the HDs already had over the 1/2 tons
that was my second plan - but after so much work on this truck, it's so hard to let it go
that & finding a good 2500 with a diesel & either the 4500 or 650 transmissions is hard in a reg cab
Kinda what I was thinking.
RCLB 2500 4x4 with the Dmax already in it then just chop it down and put SWB bed on it. Prolly wouldn't be a whole lot heavier than a half ton. Then it could still be used as a 3/4 ton for pulling/hauling stuff.
Either way your build is awesome!
RCLB 2500 4x4 with the Dmax already in it then just chop it down and put SWB bed on it. Prolly wouldn't be a whole lot heavier than a half ton. Then it could still be used as a 3/4 ton for pulling/hauling stuff.
Either way your build is awesome!
that & finding a good 2500 with a diesel & either the 4500 or 650 transmissions is hard in a reg cab
02-27-2013, 10:07 PM
#40
If what I have read is correct, all that is needed to mount the d-max into the 1/2 ton frame is an adapter plate for the gasser motor mounts. Apparently 3 of the 4 bolt holes line up, and the motor itself is in the correct position. I've seen pics somewhere before, trying to find them again.