Turbo 400 TH400 Transmission Sonnax Line Pressure Booster Kit fits GM 400-LB1

Turbo 400 TH400 Transmission Sonnax Line Pressure Booster Kit fits GM 400-LB1

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$53.25
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$53.25
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Sonnax TH400 Line Pressure Booster Kit GM

This kit includes
Large Ratio Boost Assembly
Stronger Pressure Regulator Spring
2 O-Rings

 


 

Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs 

and large ratio boost valves designed to work together to provide progressive pressure 

increases as driving conditions become more demanding.

 

 

Our pressure regulator springs are approximately 10% stronger than OE and more conservative 

in impact than other aftermarket “kit” springs. Large ratio boost valves provide higher pressure 

incrementally and when it is needed the most. 

The combination of these springs and valves in a Sonnax kit gives you the best of both worlds: 

a modest pressure increase at the low end, with a high-end pressure that is equal to or 

greater than that of other aftermarket “kit” springs.

 

Parts ship daily from our distribution center.


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