Shop | Grannas Racing

Ultimate IRS 8.8 Rear Differential Swap Kit - MKIV Supra $ 989.95 989.95 USD	Nissan 240SX S14 Ford 8.8" IRS Rear End Swap kit $ 545.00 545.0 USD	Billet Ford 9" IRS Case - Universal Kit $ 2,499.95 2499.9500000000003 USD	Ultimate IRS 8.8 Rear Differential Swap Kit - Lexus IS300 $ 989.95 989.95 USD
Driveshaft Shop Ford 9" IRS Rear kit - MKIV Supra $ 5,999.95 5999.95 USD	Ultimate IRS Billet Case Ford 9" Rear kit - MKIV Supra $ 7,999.95 7999.95 USD	Ford 9" IRS Swap Kit - Fabricated Case (weld yourself / universal) $ 2,999.95 2999.9500000000003 USD	FD3S RX7 8.8 Rear End Swap Kit $ 989.00 989.0 USD
Ultimate IRS 8.8 Rear Differential Swap Kit - Lexus GS300 GS400 $ 989.95 989.95 USD	Ultimate IRS 8.8 Rear Differential Swap Kit - BRZ FRS Toyota 86 $ 989.95 989.95 USD	Honda S2000 Ford 8.8 Rear End Swap Kit - Ultimate IRS S2K $ 1,499.95 1499.95 USD	Ultimate IRS 8.8 Rear Differential Swap Kit - Lexus SC300 SC400 $ 989.95 989.95 USD

Newest Arrivals

Price - Low to High

Price - High to Low

Thunderbird/Cobra Case Hardware Kit

Explorer Case Hardware Kit

No Hardware

With Hardware Kit

No Driveshaft

Aluminum Magnum-F to OEM rear

Aluminum Magnum-F to Ford 8.8" IRS

Carbon Fiber Magnum-F to OEM rear

Carbon Fiber Magnum-F to Ford 8.8" IRS

Aluminum Auto / A340E to Ford 8.8" IRS

Carbon Fiber Auto / A340E to Ford 8.8" IRS

I do not need axles

LEVEL5 Direct Fit (bolt-in)

PRO Level with 5x100 upgraded billet wheel hubs

PRO Level with upgraded billet wheel hubs

PRO Level with 5x114 upgraded billet wheel hubs

Direct Fit Level5 IS300

DSS 1000HP rated axles with 31 spline outer stubs (uses z32 or q45 hubs)

PRO Level FD3S RX7 with billet wheel hubs

I do not need inner axle stubs

Explorer Case

Thunderbird/Cobra/MK8 Case

9" 35 Spline (s-trac LSD)

9" 35 Spline (strange spool)

9" 35 Spline (wavetrac LSD)

I will provide an Explorer core to Grannas Racing

I will provide a Tbird/Cobra core to Grannas Racing

Grannas to source Explorer case (Junkyard Core)

Grannas to source Tbird case (Junkyard Core)

Grannas Cast Iron (Tbird) with billet main caps. ON BACKORDER UNTIL 9/5/25

I plan to run the Explorer Case

I plan to run the Thunderbird/Cobra Case

No Driveshaft

Aluminum Magnum-F to OEM rear

Aluminum Magnum-F to Ford 8.8" IRS

Carbon Fiber Magnum-F to OEM rear

Carbon Fiber Magnum-F to Ford 8.8" IRS

Aluminum 2JZ, Magnum-F, 8.8" Rear

Carbon Fiber 2JZ, Magnum-F, 8.8" Rear

Aluminum Honda K-Series, Magnum-F, 8.8" Rear

Carbon Fiber Honda K-Series, Magnum-F, 8.8" Rear

No Driveshaft

Aluminum Magnum-F to OEM rear

Aluminum Magnum-F to Ford 8.8" IRS

Carbon Fiber Magnum-F to OEM rear

Carbon Fiber Magnum-F to Ford 8.8" IRS

Aluminum A340E to Ford 8.8" IRS

Carbon Fiber A340E to Ford 8.8" IRS

No Center Section

Strange Spool (race)

S-Trac LSD (street / strip)