1972RedNeck
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Has anyone ever swapped a 13 or 18 speed in place of the 7155 Cat in an M920? Is there enough room without relocating the transfer case?
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M920 Transmission Swap
- Thread starter 1972RedNeck
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Check in with @simp5782
Cab needs to be higher, transfer case needs to move back, jackshaft needs to be modified. It isn't an easy thing to do.
A 13 fits without moving it. With a .73 ratio unit you gain 5mph or so in speed.
Use a hydraulic clutch from a freightliner cascadia and the wabco air assist hydraulic slave. This setup requires a specific clutch for hydraulic. This is the easiest pedal install over manual linkage
The PTO swaps over directly as well from the CAT
I went with an RTOO14613
Use a hydraulic clutch from a freightliner cascadia and the wabco air assist hydraulic slave. This setup requires a specific clutch for hydraulic. This is the easiest pedal install over manual linkage
The PTO swaps over directly as well from the CAT
I went with an RTOO14613
Simp's M920 build thread
2008 Rebuild truck. Rebuilt at FCI Gilmer in West Virginia. Has 1,775 miles. Came basically torn apart like they were chasing a air problem. Almost all air valves were removed. Figured out it was a wrong air line feeding the spring reservoir valve. Has a 350hp Big Cam II according to...
www.steelsoldiers.com
