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Mangus580 (Mike the Moderator Man) has a CUCV M1009 (Blazer) with a 700R4 swap. He likes it....ask him about it.Mike_Pop said:Has anyone done a tranny swap from the TH400 to a 700R4?
Mike Pop
You are comparing a little bit of apples to oranges above here.....fordlotus said:I've been down that road a few times. I'm not by any means an expert but just have learned from experience and trial and error on these tranys. I will help to the best of my knowledge. Between my dad and I we keep 3 of the m1009s running with two parts m1009's as support. We bought the military parts vehicles because we had a transfer case and also a trany go out before in seperate instances (among other parts). We learned after pulling apart a civilian blazer, a suburban, and a civilian 1 ton, all 4x4, all but blazer diesel, that nothing we pulled out would work in the m1009s for the trany or transfer case. For starters, make sure to use a diesel torq converter (assuming you still have the 6.2 in yours) no matter what you put back into your truck. Make sure to take your flywheel and match it up to what you buy when you replace it becuase there was an issue with this too. But you won't get this far without military parts because the spline numbers are different. I may be mistaken but I think the military stuff was all 36 spline and the civilian stuff was 32. I suppose if you replaced the trany, transfer case, flywheel, and torq converter you may make it work, but I'd be willing to bet one of the mechaincs on here are going to tell you there are big differences internaly to a gas trany and a diesel trany. I seriously doubt those 700s could take near the beating a 400 could.
All of the CUCV's have 32spline ouputs on the transmissions. as does every th400 out of a 1ton pickup, the 700r4 is more rare to find a 32spine, but the output shaft can be changed out.fordlotus said:I may be mistaken but I think the military stuff was all 36 spline and the civilian stuff was 32.
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