1-800-292-2953

BOOT RT04

HIGHER ANGLE INNER BOOT

BOOT RT04    $76.00

Red Silicone Inner Boot
You install it on your OEM axle
Includes adapter ring, grease & clamps

Takes 1 per axle

Description – BOOT RT04

  • DIY  Higher Angle Inner BootYou install this boot on the Inner (differential side) joint.  Skill level – advanced.
              Includes adapter ring for OEM inner joints, grease and clamps.This can help if your inner boots are running:
             at moderately higher angles (due to lifts, raised shocks, leveling kits, etc.)
             are rubbing on themselves or
             have longer travel

    This red boot design has more convolutions (ribs) so it handles angles better.

    Red Silicone Higher Angle Inner Boot 
              This boot is wider, longer, and has more ribs than the OEM design.
              Needs additional clearance of +1″ diameter around the inner joint.
              Also needs additional clearance of +1″ along the shaft.
              Please check the clearance around the inner joint before ordering.

     No warranty on these boots.
     These boots ship in 1-2 business days.


    Details

    Shipping  ground shipping and handling varies by zip code (see in cart)

    Warranty There is no warranty on this boot.

    If you have an issue, contact us, we will help resolve any problems.

    Questions?  – please give us a call or email us on the contact page.

    800-292-(AXLE) 2953, 303-297-2448

    GENERAL BOOT INFORMATION  – TO HELP YOU CHOOSE

    • ALL BOOTS – running at higher angles will decrease the life of any boot (as well as the axle’s internal components).
    • Outer = wheel side
    • Inner = differential side
    • Lift = total combined lift from lift kits, shocks, spacers, adjustments, etc.

    Neoprene Boots                     Least expensive – BETTER

    • Industry standard boot is neoprene.
    • Quality neoprene – CVJ sources better neoprene boots than most aftermarket axles.
    • Outer boot:
      • 1-5 year life expectancy. Environments with salt, mag chloride, ozone, and extreme weather will shorten the life of neoprene. Neoprene is also susceptible to dry rot and cracking.
    • Inner boot:
      • NOT FOR LIFTED
      • 1-5 year life expectancy

    Original Toyota/Lexus Boots     Closest to Original Toyota/Lexus – BEST

    • Outer boot is factory original Toyota/Lexus Hytrel plastic (most models)
      • Tougher, more abrasion and chemical resistance
      • Great for environments with salt, mag chloride, ozone, extreme weather, etc.
      • Outer boot is installed with special tools using factory original Toyota/Lexus clamps
      • 5-10+ year life expectancy
    • Inner boot is factory original Toyota/Lexus neoprene
      • NOT FOR LIFTED
      • 5-10 year life expectancy

    Higher Angle Red Silicone INNER Boots                    MODERATE LIFT – BEST 

    • Red SI Inner Boot is a proven custom solution for moderately lifted vehicles.
    • This boot is installed on the INNER joint (differential side).
    • This boot must be CHECKED and may need to be ADJUSTED (extra clamps are provided) after installation to work for your specific truck setup. Each lifted truck is unique and custom. All axles with Red Si Boots come pre-adjusted for the majority of trucks. However, the Red Si Boot still needs to be checked and may need to be adjusted for your custom setup. See instructions below.
    • For lifted vehicles, the Red Si Boot will last longer than neoprene.
    • The Red Si Boot will help if your axles are running at higher angles (lifts, raised shocks, leveling kits, etc.) and your old inner boots are:
      • at moderately higher angles
      • are rubbing on themselves
      • have longer travel
    • This custom inner boot design has more convolutions (ribs) so it handles higher angles better.
    • The silicone material is better in extreme temperatures.
    • The Red SI Boots are NOT designed for extreme axle angles (lifts over 3.5”)
    • The Red Si Boots are clamped along the axle shaft and not in the original position.

    No warranty on these boots.

    • CHECKING AND ADJUSTING THE RED Si BOOT:  Start with your truck on level ground, with the wheels on, and at normal ride height. Axles with Red Si Boots come pre-adjusted for the majority of trucks. However, the Red Si Boot still needs to be checked and may need to be adjusted for your custom setup.
      • CHECK for:
        • Adequate clearance between the boot and all suspension/frame parts (1/2”).
        • No boot ribs (convolutions) rubbing on themselves. Need 1/8” to 1/4” of clearance between the closest ribs. Roll the truck tires 1/4 turn and check again – repeat x3.
      • ADJUST the boot,
        • Remove the small clamp and slide the boot so the ribs don’t touch.
        • You need 1/8” to 1/4” of clearance between the closest ribs.
        • Do not stretch the boot too far! The boot will tear in tension if stretched too far.
        • Re-clamp the boot with the extra clamps provided.

    No warranty on these boots.

    • There are a few products that can help condition boots to help them last longer (especially neoprene). These products can be sprayed on boots periodically:
      • 303 UV Protectant Spray
      • Mclube Sailkote Spray
      • Silicone spray (CRC, Berryman, etc.)

Additional information

Weight 2.5 lbs
Dimensions 10.375 × 8.357 × 4.25 in
Lift

LIFTED / LEVELED – MODERATE ANGLES