# Ram 1500 Parts Guides: Fitment, Codes & Buying Used

> Plain answers to the Ram 1500 questions buyers ask before ordering: generation interchange, transmission and engine codes, bolt patterns, bed lengths and VINs.

- Canonical HTML: https://dodgedaddy.ca/guides/
- Section: Home > Guides
- Business: Dodge Daddy, Hamilton, ON, Canada
- Page updated: 2026-09-09

---

**Eleven plain answers to the questions Ram 1500 owners ask before buying a used part:** what interchanges between the 4th and 5th generation, how to tell the three bodies apart, which transmission and which HEMI a given year has, the 5-lug versus 6-lug bolt pattern, bed lengths and cab styles, headlight and Uconnect types, the tailgate recall, how to read the VIN, and what to ask any Ontario yard. Every figure is quoted from the manufacturer, Transport Canada, Ontario or NHTSA and linked beside the claim.

[Do 4th gen and 5th gen Ram 1500 parts interchange? Almost nothing bolts across from a DS to a DT. The list of what does, what does not, and why. Read the guide](https://dodgedaddy.ca/guides/ram-1500-4th-gen-vs-5th-gen-parts-interchange/) [How do I tell a 4th gen, a Classic and a 5th gen Ram 1500 apart? Three trucks were on sale at once from 2019. The visual tells, the VIN, and the badge. Read the guide](https://dodgedaddy.ca/guides/how-to-tell-4th-gen-from-5th-gen-ram-1500/) [Which transmission is in my Ram 1500? 65RFE, 8HP70 or 8HP75: Six-speed or eight-speed, and which eight-speed. By engine and year, with the tag to look for. Read the guide](https://dodgedaddy.ca/guides/ram-1500-transmissions-65rfe-8hp70-8hp75/) [Which Ram 1500 years have the 5.7 HEMI, and what is eTorque? Output by year, the 2019 eTorque mild hybrid, the year it was dropped and the year it came back. Read the guide](https://dodgedaddy.ca/guides/5-7-hemi-years-etorque-mds/) [What is the Ram 1500 wheel bolt pattern? 5-lug vs 6-lug: DS trucks are 5 by 139.7. DT trucks are 6 by 139.7. A wheel from one will not go on the other. Read the guide](https://dodgedaddy.ca/guides/ram-1500-wheel-bolt-pattern/) [Ram 1500 bed lengths and cab styles: 5'7", 6'4" and 8', Quad vs Crew: How to measure your box, which cab took which bed, and why Quad and Crew rear doors differ. Read the guide](https://dodgedaddy.ca/guides/ram-1500-bed-lengths-cab-styles/) [Which headlights does my Ram 1500 have? Quad halogen, projector or LED: The 2013 quad projector redesign, Sport black bezels, and the three DT lamp variations. Read the guide](https://dodgedaddy.ca/guides/ram-1500-headlight-types/) [Which Uconnect radio is in my Ram 1500? RA3, RA4, Uconnect 4 and 5: The 8.4-inch units across three generations, what swaps, and what needs a dealer to marry it. Read the guide](https://dodgedaddy.ca/guides/ram-1500-uconnect-radios/) [Ram 1500 tailgates: the 2019 to 2020 recall and the multifunction gate: Transport Canada recall 2022699, and how the 60/40 swing-away gate differs from a standard one. Read the guide](https://dodgedaddy.ca/guides/ram-1500-tailgate-recall-and-multifunction/) [How to read a Ram 1500 VIN before you order a part: Which character is the model year, which is the engine, and the free decoder to confirm it. Read the guide](https://dodgedaddy.ca/guides/how-to-read-a-ram-1500-vin/) [Buying used truck parts in Ontario: what to ask and what to expect: Testing, cores, HST, pickup versus shipping, and what Ontario asks of a dismantling yard. Read the guide](https://dodgedaddy.ca/guides/buying-used-truck-parts-ontario/)

## Still not sure it fits? Ask us.

Send the year, trim and body and the part you are after. Checking fit is the job.

[Ask about a part](https://dodgedaddy.ca/contact/)

---

Dodge Daddy parts out 2009 to 2026 Ram 1500 trucks in the Hamilton Region, Ontario. Ask about a part: https://dodgedaddy.ca/contact/. Full site: https://dodgedaddy.ca/