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48RE "BackBoss" Reverse Manual Valve Body

$1,095.00
$1,095.00
Sale Sold out
Shipping calculated at checkout.
Customize Your Build
Billet Low/ Reverse Retainer
Line Pressure
MPT Reverse Pattern Full Manual Valve Body
  • 2nd Gear Lockup (locks torque converter as soon as second gear is manually shifted, lockup switch must be on)
  • Locked 4-3 Downshift
  • No use of governor pressure solenoids/ transducers (Much more consistent shifts on high pressure valve bodies) 
  • Valve Body Pressure adjustment and guideline instructions
  • Tested OD/TCC Solenoid
  • Custom laser cut separator plates
  • Castings flat sanded
  • Castings cleaned in ultrasonic cleaner
  • All threads checked and repaired if needed
  • Bores vacuum checked and repaired for excessive wear
  • Static line pressure set to 150PSI and 190PSI in 4TH/TCC Lockup. Valve body does not require any external line pressure adjustment.

MPT manual valve bodies are not shipped with 48RE rooster combs, if your manual valve body is being installed in a 48RE, please keep your existing rooster comb and swap it when you receive your manual valve body. If core is sent in ahead of time, MPT will swap the rooster comb for you.

Full Manual Valve Body Installation Instructions

Full Manual Valve Body Core Return Instructions

Switched Shifter Instructions

We accept 47 or 48 valve bodies as a core. If your valve body has been modified with anything other than a Transgo shift kit, please email us with images of your core. We do NOT accept BD, ATS or Sonnax valve bodies as cores.

If you select the "I will send my core in ahead of time" option, MPT will not ship your valve body until after we receive your acceptable core.