1978 GMC K15 equipped with 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.1L L6 Gas OHV
1
Rear
Rancho Suspension Leaf Spring Block Kit 1976 1/2 1986 Blazer or Jimmy and short bed pickups with a 4suspension system ... Block Kit No. RS70054 is required with RS86209 Rear Spring for a 4 lift. Raises Rear 2.5 in Rear Suspension Lifted by Block
1978 GMC K15 equipped with 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.1L L6 Gas OHV
Rear
Rancho Suspension Leaf Spring Block Kit 1976 1/2 1986 Blazer or Jimmy and short bed pickups with a 4suspension system ... Block Kit No. RS70054 is required with RS86209 Rear Spring for a 4 lift. Raises Rear 2.5 in Rear Suspension Lifted by Block
1978 GMC K15 equipped with 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.1L L6 Gas OHV
1
Rear
Rancho Suspension Leaf Spring Block Kit Raises Rear 4.0 (in) Rancho does not recommend installing a 4.0 (in) suspension system on vehicles with a long rear tail shaft housing as rear universal wear will be accelerated and driveline vibration will occur.
1978 GMC K15 equipped with 6.6L V8 Gas OHV, 5.7L V8 Gas OHV, 5.0L V8 Gas OHV, 4.1L L6 Gas OHV
Rear
Rancho Suspension Leaf Spring Block Kit Raises Rear 4.0 (in) Rancho does not recommend installing a 4.0 (in) suspension system on vehicles with a long rear tail shaft housing as rear universal wear will be accelerated and driveline vibration will occur.
