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I have a few “unicorn” rears I’m letting go that I have been sitting on for awhile. The reason they are unique is because they are the lightest of the light in a Winters K837S style sprint rear. There are parts on these that aren’t available to buy any longer because supply for them ceased to exist. You cannot build a any lighter 10” ring and pinion style rear.
Rear#1 C45033
LW black thermal coated mag case & side bell
ULW Re anodized 2.062 52-1 axle w/spline left
4.12 ratio R&P w/EDM & REM
Titanium lower shaft
Internal steel coupler 10-10 style
Complete Ti bolt and stud kit
Titanium shifter shaft
Mag shifter housing
Alum(black anodized) side cover nyloc nuts-new
Titanium 1/2”-20 button head center spool bolts
$1450
Rear#2 C42198
Exact build as above except:
Has new 10-10 steel internal coupler
Has Titanium loc style side cover nuts
$1450
Rear#3 no serial number(replacement case)
Exactly build as the first rear except:
New Alum 10-10 internal coupler
New 4.12 R&P / REM only
$1450
Rear #4 C74833
Winters XHD black thermal coat case and mag side
4.12 std. ring & pinion
LW 1.875” axle 52–1 left side splined
Brand new complete 10-10 steel lower shaft assembly
Fresh $975
We also repair and rebuild customer rears daily. Get your rebuilds in early to get them back early.
15 yrs experience. Stock all brands and parts.
Sprint Mart - Indy
(317)852-6700
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