Triumph TR4-5-250 Rear Axle Components - IRS

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Part No.: GRID200320

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26
The two types of drain plug are interchangeable.
It is advisable to use the magnetic type for safety’s
sake, to attract and collect any unwanted ferrous
particles in the gearbox lubricant.
Qty Req-1, Item Info 2-original
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114774
In stock
£3.75 ex VAT£4.50 inc UK VAT
Quantity
27
Remanufactured by Rimmer Bros - Crown wheels are available to the later Girling axle specification only.
To fit a new crown wheel to a Lockheed axle, some modification is necessary to the bolt holes on the carrier to which the crown wheel is to be attached.
Alternatively, a later, Girling type carrier may be substituted.
Qty Req-1
Rate and Review this Product
516398
In stock
£465.00 ex VAT£558.00 inc UK VAT
Quantity
27
Remanufactured by Rimmer Bros - Crown wheels are available to the later Girling axle specification only.
To fit a new crown wheel to a Lockheed axle, some modification is necessary to the bolt holes on the carrier to which the crown wheel is to be attached.
Alternatively, a later, Girling type carrier may be substituted.
Qty Req-1
Rate and Review this Product
502127
In stock
£295.00 ex VAT£354.00 inc UK VAT
Quantity
27
Crown wheels are available to the later Girling axle specification only.
To fit a new crown wheel to a Lockheed axle, some modification is necessary
to the bolt holes on the carrier to which the crown wheel is to be attached.
Alternatively, a later, Girling type carrier may be substituted.
Qty Req-1
Rate and Review this Product
505014
In stock
£465.00 ex VAT£558.00 inc UK VAT
Quantity
Collapsible spacer type crown wheel and pinion sets were used on later
TR models and can be fitted in the earlier axle assemblies with the
correct type bearing spacer.
Qty Req-1
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UKC547
No longer available
27
Remanufactured by Rimmer Bros - Crown wheels are available to the later Girling axle specification only.
To fit a new crown wheel to a Lockheed axle, some modification is necessary to the bolt holes on the carrier to which the crown wheel is to be attached.
Alternatively, a later, Girling type carrier may be substituted.
Qty Req-1
Rate and Review this Product
516398
In stock
£465.00 ex VAT£558.00 inc UK VAT
Quantity
Collapsible spacer type crown wheel and pinion sets were used on later
TR models and can be fitted in the earlier axle assemblies with the
correct type bearing spacer.
Qty Req-1
Rate and Review this Product
UKC548
No longer available
27
Remanufactured by Rimmer Bros - Crown wheels are available to the later Girling axle specification only.
To fit a new crown wheel to a Lockheed axle, some modification is necessary to the bolt holes on the carrier to which the crown wheel is to be attached.
Alternatively, a later, Girling type carrier may be substituted.
Qty Req-1
Rate and Review this Product
502127
In stock
£295.00 ex VAT£354.00 inc UK VAT
Quantity
Rate and Review this Product
100422SR
Usually in stock at our supplier, allow 2 weeks for delivery
£152.50 ex VAT£183.00 inc UK VAT
Quantity
35
Leather varies in hardness and is susceptible to leakage.
A change to our alternative rubber oil seal is an excellent and economic improvement.
  • OD - 68.5mm
Qty Req-1, Item Info 2-front - leather
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140337
In stock
£4.65 ex VAT£5.58 inc UK VAT
Quantity
35
A change to our alternative rubber oil seal is an excellent and economic improvement.
Qty Req-1, Item Info 2-front - rubber alternative
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140337P
This part has been superseded
Use 140337
12 month warranty
Worldwide shipping
Price Match
Customer Comments
"I've used Rimmer Bros for years, since my first TR7s and now with my L322, Always found your stock very useful. Thanks for being there." Customer Comment
Product Description

Triumph TR4-5-250 Rear Axle Components - IRS
The shims used to correctly position and pre-load the crown wheel and pinion and bearings did not change from TR2 to TR6 (including Stag, Sprint and Innsbrock saloons). The IRS axles require a single spacer, in addition, between the pinion and the pinion head bearing. It is argued that this spacer could be replaced with an equivalent number of shims between the pinion and head bearing as both achieve the same net result.
Rebuilding of many hundreds of differentials has only ever-revealed spacers 0.040 thick. No parts book listed this spacer though a Triumph service release seems to indicate a range of thickness’ (0.030 to 0.051) was available, part numbers 140643 to 140657.
In the absence of full engineering drawings it can only be guessed that the internal machining of the differential casings between solid axle TRs and IRS versions is different. With the introduction of the 3.45 to 1 ratio in 1967 the pinion teeth would foul the casing in some circumstances due to the larger pinion diameter, but that doesn’t explain the spacers presence from 1965 in the TR4A differential which used 3.7 and 4.1 to 1 ratios.
If the spacer is left in place and the contents of an IRS differential are fitted to a solid axle, the pinion face will usually foul the hub (or crown wheel carrier) as it rotates.