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Alternative Trans?

Upside, cheaper than an NV4500
Downside, no adaptors available and the OD isn't that great IMO. 0.85:1 isn't really enough of an overdrive to make a meaningful difference.

My old SM465, 4.56's with 37's...2690 rpm @ 65 mph
3053A, 4.56's and 37's...2287 rpm @ 65 mph
NV4500, 4.56's and 37's...1961 rpm @ 65 mph

I did look into the Spicer before committing to rebuilding the NV4500 though.
The cruise rpm difference was the deciding factor for me, seeing as both were going to be a fair amount of work.

Rene
 
Jackedup86GMC said:
Where did you get that pic? That 2 1/2 is great. That would definately be fun.

1 truck. 1 trailer for same truck. 1 extra set of frt hangers shackles and springs. then remove all rear parts. cut frame to length. install all other parts. and 1 set of 52" tires. bam you have 4x4 2.5 ton.
 
I stole some pics of a truck just like that 2.5 ton with trailer that just sold on ebay-- only difference was it didn't have a winch and it was on 12.50X20 XL's. Ya reckon there's two of them out there? I love the idea, and would like to build one with a cummins 5.9.
Jimbo
 
thats the one i just saw and was very tempted to go grab it. as i am close to there. just didnt have a drop deck lowboy semi to get it.
 

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