Rear Unit Endplay Shim400, 425, 4L80-E, 4L85-E Package Quantity: 10Rear Unit Endplay, .005" ThickOuter Dia.: 3.250"Inner Dia.: 2.375"Thickness: 0.005"Material: SteelSonnax now offers two solutions for excessive endplay in your GM 400/4L80-E units. The Sonnax rear unit endplay shim 34006-05 can be stacked under the four tab metal thrust washer on the rear of the output shaft flange to set unit endplay in the same manner as the OE selective three-tab spacers. These shims eliminate the need to stock expensive or hard-to-find OE three-tab spacers and are an alternative to the Sonnax shim, 34500-Z. Shimming at this location maintains the stack-up height between the gear train main shaft and sun gear
Sonnax 34006-05 Rear Unit Endplay Shim 400 425 4L80-E 4L85-E

Rear Unit Endplay Shim
  • 400, 425, 4L80-E, 4L85-E Package Quantity: 10

    Rear Unit Endplay, .005" Thick

  • Outer Dia.: 3.250"
  • Inner Dia.: 2.375"
  • Thickness: 0.005"
  • Material: Steel
  • Sonnax now offers two solutions for excessive endplay in your GM 400/4L80-E units. The Sonnax rear unit endplay shim 34006-05 can be stacked under the four tab metal thrust washer on the rear of the output shaft flange to set unit endplay in the same manner as the OE selective three-tab spacers. These shims eliminate the need to stock expensive or hard-to-find OE three-tab spacers and are an alternative to the Sonnax shim, 34500-Z. Shimming at this location maintains the stack-up height between the gear train main shaft and sun gear shaft.

  • Shims allow for setting of rear unit endplay by shimming components at the same location as OE selective spacers
  • Can also be used between the two carriers to optimize reaction carrier endplay
  • From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    From the iconic mail order catalog to a fully-stocked digital commerce experience, we have built a preferred destination for every gear-head, professional racer, weekend warrior and restoration nut who wants to take their vehicle to the next level.

    Around here, we don't just sell parts - we rely on them when driving our own cars around racetracks, dirt trails, and interstates across the country. Parts may be our business - but grease, fuel, exhaust, power, and speed are what we live for. 

    Today, more than 350 people are employed by JEGS and the business draws in hundreds of thousands of customers each year. Yet, we maintain the culture stared by Jeg Coughlin from the very beginning: a family-run performance shop that preserves a trusted relationship with each and every customer.

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    SALES TAX

    Taxes may be applicable at checkout 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    SALES TAX

    Taxes may be applicable at checkout 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SALES TAX

    Taxes may be applicable at checkout 

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SALES TAX

    Taxes may be applicable at checkout 

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    SALES TAX

    Taxes may be applicable at checkout 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    SALES TAX

    Taxes may be applicable at checkout 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    PAYMENT

    We accept the following forms of payment:

    • PayPal
    • VISA
    • Discover
    • MasterCard
    • American Express

    SALES TAX

    Taxes may be applicable at checkout. 

    SHIPPING

    Standard shipping is 1-5 business day delivery on most items.

    Additional delivery days may apply in some instances, such as hazardous items, mounted tires and wheels, oversized items, truck freight items, select zip codes, Global Shipping Program and remote delivery areas. 

    RETURN POLICY

    If you are not completely satisfied, return the new/unused item in the original box pre-paid (customer is responsible for shipping cost) postmarked within 90 days of purchase, with a copy of the invoice, for a refund/exchange. Once a return has been approved, the credit will be processed within 2 days to original form of payment. A 15% restocking fee will be deducted from any item returned more than 90 days after the ship date. A 15% reboxing fee will be deducted for any item not returned in its original packaging. 

    WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov