Strange Ultra & Billet Case Installation Kit Using Ball Bearing Support & 35 Spline Pro Gear Front Pinion Race Is Not Included


Part Number: R5238UCB

Ultra Case ball bearing support – N1952A / N1953A
Billet Case ball bearing support – N1950AE / N1950AF
Installing 35 spline Pro gear

Front Pinion Race Is Not Included

Kit Includes

Timken tapered front pinion bearing
Rear angular contact ball bearing assembly – N1920BM
Rear bearing spacer washer – N1920D
Side bearings and races – D1590 or D1592
Tail bearing – N1943
Pinion seal – N1961L
Pinion support o-ring – N1950B
Pinion nut & washer – N1922F / N1922G
Adjustable pinion preload spacer – N1919
Pinion depth shim kit – N1962UC
ARP ring gear bolts – N1975 & N1976, D2004B & N1950K, or N1973

Billet Cases Do Not Use Ring Gear Bolt Washers

Information Required

Case Type
Ultra Case / Billet Case

Bore Size – Ultra Case Only
3.250″ / 3.812″

For 4.00″ bore Ultra Case – Please call

For Strange Spool
Steel or Aluminum

For Other Spools
The ring gear bolts supplied are designed for a flange thickness of .375″ to .447″
If your spool exceeds .447″, the ring gear bolts may be be too short
Specify if using an aluminum spool

Related Components

Kit with front pinion race………. R5238UCBR
Kit for 28 spline pinion…. R5237UCB / R5237UCBR
Fel Pro gasket…………………………… H1112G
Fel Pro Teflon® gasket……………… H1111
Lube Locker gasket…………………… H1111S


Ultra Case installation kit for ball bearing pinion support & 35 spline pinion- No front race

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